Alkenes ______...? Mcqs

PPSC Past Papers

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Alkenes ______...?

(A) Show the same general formula as alkynes
(B) Have carbon-carbon triple bond

(C) Have carbon-carbon double bond
(D) Are saturated hydrocarbons

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Volvox is a polyphyletic genus of _______...?

(A) Green algae
(B) Red algae

(C) Brown algae
(D) None of these

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The scientific study of teeth is called ____________...?

(A) Odontology
(B) Ornithology

(C) Orthoepy
(D) Pedagogy

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Gravitational force is always ______...?

(A) Repulsive
(B) Attractive

(C) Both
(D) None of these

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The species that flower are called ______________...?

(A) Gymnosperms
(B) Bryophytes

(C) Angiosperms
(D) Algae

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When the angle of refraction is 90° and the refractive index for water is 1. 33, the critical angle is ______...?

(A) 48.8°
(B) 50.0°

(C) 49.1°
(D) 51.0°

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The outer part of DNA helix made up of sugar and phosphate is called ______...?

(A) Nucleoprotein
(B) Rungs

(C) Upright
(D) Phosphoester

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Which of the following are Biodegradable ___________...?

(A) Cans
(B) Dead Plants

(C) Glass
(D) None of these

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The position of earth in its orbit, when it is at its greatest distance from the sun causing northern summer is called ___________...?

(A) Aphelion
(B) Perihelion

(C) Perigee
(D) Apogee

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The Scientific Study of Caves are know as _________ ...?

(A) Haematology
(B) Speleology

(C) Oology
(D) Oneriology

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Microorganisms can only be seen with an equipment called ________...?

(A) Microscope
(B) Telescope

(C) Spectroscope
(D) None of these

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A D.C motor converts _______...?

(A) Mechanical energy into electrical energy
(B) Mechanical energy into chemical energy

(C) Electrical energy into mechanical energy
(D) Electrical energy into chemical energy

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The largest part of the human brain is ___________...?

(A) Medulla oblongata
(B) Cerebellum

(C) Cerebrum
(D) None of these

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Flame test of Copper Halide with bluish-green color identify the presence of ______...?

(A) Halogen
(B) Hydrogen

(C) Copper
(D) B and C

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The medical branch of science that deals with the study of skin, its functions, diseases, & treatment is ________ ...?

(A) Dermatology
(B) Dormatology

(C) Deontology
(D) Dermatoglyphics

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In Fahrenheit scale the freezing point of water is ______...?

(A) 30°F
(B) 32°F

(C) 34°F
(D) 100°F

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In five kingdom system virus placed in ______...?

(A) Monera
(B) Protista

(C) Plantae
(D) None of these

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The gravitational pull at the lunar surface is ________ of Earth...?

(A) 1/3
(B) 1/4

(C) 1/5
(D) 1/6

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When a light ray enters from a denser medium to a rare medium, it bends ______...?

(A) Perpendicular to normal
(B) Parallel to normal

(C) Toward normal
(D) Away from normal

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The outermost layer of the sun is called __________...?

(A) Coach
(B) Core

(C) Corona
(D) Comma

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The molecular mass of Water molecule is __________...?

(A) 16amu
(B) 17amu

(C) 18amu
(D) 20amu

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Fine organic or inorganic particles suspended in air is called _______________...?

(A) particulate pollutant
(B) gaseous pollutant

(C) aerosol
(D) none of these

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The main function of the kidney is ____________...?

(A) To control blood pressure
(B) To control body temperature

(C) To remove waste product from the body
(D) To help in digestion of food

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A saturated solution of KCl on heating becomes _______...?

(A) Unsaturated
(B) Supersaturated

(C) Diluted
(D) All of these

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Flow of electrons is called ______...?

(A) Electric Charge
(B) Electric Potential

(C) Electric Power
(D) Electric Current

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Inspiration involves ______...?

(A) Contraction of intercostals muscles
(B) Contraction of diaphragm

(C) Inward movement of ribs
(D) Both a and b

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Colour of the plants is green due to the presence of _________....?

(A) Carbon dioxide
(B) Chlorophyll

(C) Urea
(D) Oxygen

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Light travelling in a straight line ______ when it strikes the surface of another medium....?

(A) Reflects
(B) Refracts

(C) Diffracts
(D) Absorbs

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Study of fruit is called ___________...?

(A) Pomology
(B) Plriculture

(C) Sericulture
(D) Apiculture

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The scientific study of fingerprints is called _________ ...?

(A) Dactylography
(B) Dactylology

(C) Dactyliology
(D) Dialectology

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The repetition of property after a certain interval called ___________...?

(A) Electron efinity
(B) Atomic radius

(C) periodicity of property
(D) none of these

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Example of gas having monoatomic molecules is ___________ ...?

(A) Nitrogen
(B) Nydrogen

(C) Neon and argon
(D) Oxygen and nitrogen

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Chemical formula for Water is _______ ...?

(A) NaAlO2
(B) H2O

(C) Al2O3
(D) CaSiO3

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Two similar chromosomes in a cell which are similar in shape, size and position of centromere called _______...?

(A) Chromatids
(B) Arms

(C) Homologous
(D) Homology

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Ozone layer prevents ______________ radiation from entering the atmosphere...?

(A) Infra-red
(B) Ultraviolet

(C) X-rays
(D) Gamma rays

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Polyethene is ______...?

(A) Oil
(B) Paper

(C) Plastic
(D) Wood

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Vitamin B2 is also called as__________...?

(A) Riboflavin
(B) Thiamine

(C) Ascorbic Acid
(D) Niacin

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The PH of milk is __________...?

(A) 6.0
(B) 6.5

(C) 7.0
(D) 7.5

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Blood is cleaned by __________...?

(A) Lungs
(B) Liver

(C) Heart
(D) Kidneys

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The density of water is __________...?

(A) 1 g/cm3
(B) 1.5 g/cm3

(C) 2 g/cm3
(D) none of these

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Light dependent reaction takes place in ______...?

(A) Stroma
(B) Thylakoid

(C) Cristae
(D) Cisternae

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Two capacitors of 8µF are connected in series then the equivalent capacitance is ______...?

(A) ¼ µF
(B) 2 µF

(C) 3 µF
(D) 4 µF

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The distance between two successive crests or troughs of a wave is called ______...?

(A) Frequency
(B) Amplitude

(C) Velocity
(D) Wavelength

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By which process copper is refined ____________...?

(A) Roasting
(B) Oxidation

(C) Zone Refining
(D) Electrolysis

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The part of brain involved in balance and precision in movements is ______...?

(A) Cerebrum
(B) Cerebellum

(C) Thalamus
(D) Medulla oblongata

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When oil and gas resources are burnt they kill many forests and lakes by ________________ ...?

(A) deforestation
(B) water pollution

(C) acid rain
(D) forest fire

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The respiratory problem common in smokers is______...?

(A) tuberculosis
(B) Emphysema

(C) Asthma
(D) Cancer

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The areas around the North and South poles within the Polar circles is called _____________...?

(A) The Torrid Zone
(B) The Frigid Zone

(C) The Temperature Zone
(D) The Hardiness Zone

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Deficiency of vitamin E in the human body causes __________...?

(A) Muscle weakness and vision problem
(B) Bone problem

(C) Rickets
(D) Osteoporosis

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The periodic table divided into S, P, d, and f block based on _______...?

(A) Atomic Radius
(B) Electronic Configuration

(C) Ionization Energy
(D) Electron Affinity

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Newton's law of gravitation is consistent with Newton's _________ law of motion....?

(A) 1st
(B) 2nd

(C) 3rd
(D) All of them

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RBCs are also called as_______...?

(A) Leucocytes
(B) Erythrocytes

(C) Nucleotides
(D) AOT

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A movable pulley can _______...?

(A) Increase the input force
(B) Decrease the input force

(C) Change the direction of force
(D) Change the speed of force

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The height at which atmospheric pressure declines by a factor of e (an irrational number equal to 2.71828) is called __________....?

(A) Average height (H)
(B) Scale height (H)

(C) Mean height (H)
(D) Standard height (H)

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The respiratory surface of human is ______...?

(A) Nostril
(B) Bronchiole

(C) Alveoli
(D) Trachea

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The echo (reflected sounD. will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least ________...?

(A) 1120 ft
(B) 120 ft

(C) 56 ft
(D) 100 ft

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Zero error of the instrument is _______...?

(A) Systematic error
(B) Human error

(C) Random error
(D) Classified error

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An extremely small piece of silicon on which integrated circuits are implicated is called __________________...?

(A) Card Reader
(B) Hollerith Code

(C) Feed
(D) Chip

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Number of electrons lost by atoms of group IIIA equals ______...?

(A) 1
(B) 2

(C) 3
(D) 4

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The study of X-rays and their medical applications is called _________ ...?

(A) Radiology
(B) Raciology

(C) Rheumatology
(D) Rheology

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The process by which air flows from one location in the atmosphere to another is called __________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) Electromagnetic Induction

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Second highest layer of Earth's atmosphere is _______...?

(A) Troposphere
(B) Stratosphere

(C) Mesosphere
(D) Thermosphere

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The activity in relation to changes in environment is ______...?

(A) Stimulus
(B) Response

(C) Both a & b
(D) None of these

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The average heartbeat per minute in a normal man is _________...?

(A) 50
(B) 70

(C) 80
(D) 100

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The isotope C-12 is present in abundance of _______...?

(A) 96.9%
(B) 97.6%

(C) 98.8%
(D) 99.7%

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The altitude on stratosphere is ______...?

(A) 40 to 45 km
(B) 50 to 55 km

(C) 60 to 65 km
(D) 70 to 75 km

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State of matter which has definite shape and volume is called __________...?

(A) Liquid
(B) Gas

(C) Solid
(D) None of these

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Study of “Aging” is called __________...?

(A) Gerontology
(B) Hstologyh

(C) Pysiology
(D) Anthropology

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The type of seed production without fusion of male and female gametes is ______...?

(A) Parthenocarpy
(B) Apomixes

(C) Grafting
(D) Scion

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Boiling point of pure water is __________...?

(A) 90’C
(B) 97’C

(C) 100’C
(D) None of these

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Solubility is usually expressed in grams of the solute dissolved in ________ gram of a solvent....?

(A) 10 grams
(B) 100 grams

(C) 500 grams
(D) 1000 grams

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10^-3 second is called as _____...?

(A) Millisecond
(B) Microsecond

(C) Nanosecond
(D) Picosecond

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The PH of milk is _______...?

(A) 6.0
(B) 6.5

(C) 7.0
(D) 7.5

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The Boolean expression of an AND gate is ______...?

(A) A . B
(B) A + B

(C) A x B
(D) None of these

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Seed Coat is also called _________...?

(A) Radical
(B) Testa

(C) Tegmen
(D) None of these

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The protons and neutrons are found in the center of the atom, which is called the _________of the atom...?

(A) Nucleus
(B) Headquarters

(C) Hub
(D) None of These

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The scientific study of spiders is called __________ ...?

(A) Arachnology
(B) Osteology

(C) Pomology
(D) None of these

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The outermost layer of the Earth is called ____________...?

(A) Crust
(B) Mental

(C) Core
(D) None of these

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Pure limestone is called _______...?

(A) Aluminum Oxide
(B) Calcium Carbonate

(C) Calcium Sulphate
(D) None of these

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Bolometer measures: ____________...?

(A) Breadith of tree
(B) Burning capacity

(C) Heat radiation
(D) Bearing capacity

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The point within the Earth where earthquakes originate is _________...?

(A) Comma
(B) Origin

(C) Epicenter
(D) Focus

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Instrument of rain gauge is _________...?

(A) Drosometer
(B) Ombrometer

(C) Micrometer
(D) Pyrometer

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The permanent hardness of water is due to presence ______...?

(A) MgSO4
(B) Mg(HCO3)₂

(C) CA(HCO3)2
(D) All of these

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When the magnitude of Kc is small, indicates ______...?

(A) Reaction mixture contain most of the reactant
(B) Reaction mixture contain most of the product

(C) Reaction mixture contain almost equal amount of reactant and product
(D) Reaction goes to completion

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Numerical value of ______ remains constant every where....?

(A) g
(B) G

(C) F
(D) W

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When a warm air is lifted off the surface in temperature depression it is called ________...?

(A) An occlusion
(B) A cold front

(C) An anticyclone
(D) A warm front

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The melting point of Ice on Fahrenheit Scale is taken as _____...?

(A) 32°F
(B) 0°F

(C) 212°F
(D) None of these

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Diamond is a very expensive ornament. It is composed of a single element ___________...?

(A) Carbon
(B) Gold

(C) Silver
(D) Platinum

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The group containing only electromagnetic waves is ______...?

(A) Light waves, Radio waves, Microwaves
(B) Light waves, Radio waves, Sound waves

(C) Light waves, Sound waves, Microwaves
(D) Radio waves, Sound waves, Microwaves

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Ohm's law is not applicable to ______...?

(A) D.C. circuits
(B) Small resistors

(C) High currents
(D) Semiconductors

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If the electrostatic force between two electrons is F Newton, then the electrostatic force between two protons at the same distance is _____...?

(A) F
(B) 0N

(C) 2F
(D) 2/3 F

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Sodium Carbonate is commonly called ________...?

(A) Plaster of Paris
(B) Washing Soda

(C) Common Salt
(D) None of these

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Butter paper is _________ material because it scatters light....?

(A) Transparent
(B) Translucent

(C) Opaque
(D) None

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Work done per unit time is called ______...?

(A) Efficiency
(B) Energy

(C) Power
(D) Force

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The Boolean expression of an OR gate is ______...?

(A) A . B
(B) A + B

(C) A x B
(D) None of these

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pH value of water is _________...?

(A) 5
(B) 5-6

(C) 8.7-10.5
(D) 6.5-8.5

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A term biotype means ___________...?

(A) all individuals having same phenotype
(B) all individuals having same genotype

(C) all individual with different phenotype
(D) all individuals with different genotype

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There are almost _______of nephrons in the each kidney in human body...?

(A) 5 million
(B) 3 million

(C) 1 million
(D) 10 million

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The S. I. unit of refractive index is _______...?

(A) meter
(B) cm

(C) watt
(D) no unit

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Part of earth where life exists is called ______...?

(A) Lithosphere
(B) Atmosphere

(C) Biosphere
(D) Hydrosphere

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The Summer solstice in the Northern Hemisphere happens on: __________...?

(A) 21 July
(B) 22 December

(C) 22 March
(D) 21 June

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In general, the most destructive earthquake waves are the __________ ...?

(A) P waves
(B) S waves

(C) Surface waves
(D) All of the above

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The sun’s surface is called ___________...?

(A) Cromosphere
(B) Leutosphere

(C) Thermosphere
(D) Photosphere

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The general formula for alkanes is _____...?

(A) CnH2n
(B) CnH2n+1

(C) CnH2n+2
(D) CnH2n-1

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the delicate lungs are protected by a cage that is called ______...?

(A) luvcage
(B) Ribcage

(C) both A & B
(D) None of these

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Pollutants that are introduced into the environment by human activity are called as ___________...?

(A) Qualitative pollutants
(B) Quantitative pollutants

(C) Anthropogenic pollutant
(D) All of Above

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Triple point of water is _________...?

(A) 271 K
(B) 272.2 K

(C) 273.16 K
(D) None of these

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Ibex is a wild alpine ________ found in Himalaya...?

(A) Dog
(B) Hen

(C) Sheep
(D) Goat

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Volcanoes are usually located on ________...?

(A) Divergent plate boundaries
(B) Convergent plate boundaries

(C) Hotspots
(D) All of these

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In Fahrenheit scale the boiling point of water is ______...?

(A) 208°F
(B) 210°F

(C) 212°F
(D) 214°F

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The moon has a large, circular basin called _____________...?

(A) the Simerian Basin
(B) the Inbrium Basin

(C) the Imbrium Basin
(D) Black Bowl Basin

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The optic nerve which is found in the human brain is also called ___________...?

(A) Second cranial nerve
(B) Mini nervous

(C) Carnival nerve
(D) Sustained nerve

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The most abundant element in the universe is __________....?

(A) Oxygen
(B) Hydrogen

(C) Carbon Dioxide
(D) Silicon

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In the Centigrade scale, the freezing point of water is _______ and the boiling point of water is ________...?

(A) 0°C, 50°C
(B) 10°C, 100°C

(C) 0°C, 100°C
(D) 5°C, 90°C

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Plant grow near coastal area called ______...?

(A) Xerophyte
(B) Halophyte

(C) Epiphyte
(D) Hygrophyte

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An active asteroid is discovered near ________ Orbit for the first time in billion years....?

(A) Saturn
(B) Mars

(C) Neptune
(D) Jupiter

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Outer layer of the human skin is called __________...?

(A) Hypodermis
(B) Dermis

(C) Hemidermis
(D) Epidermis

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Each day human body breathe in __________ liters of air....?

(A) 5,000 to 10,000
(B) 10,000 to 15,000

(C) 15,000 to 20,000
(D) 20,000 to 25,000

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Which of the following are non-biodegradable materials ______...?

(A) Dead Animals
(B) Plastics

(C) Bread
(D) None of these

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The main factor for determining a region’s climate is ___________...?

(A) Latitude
(B) Temperature

(C) Longitude
(D) None of them

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In Fahrenheit scale the freezing point of water is ______ and boiling point of water is _______ ...?

(A) 32°F, 212°F
(B) 212°F, 32°F

(C) 35°F, 210°F
(D) 210°F, 35°F

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The process in which seed grows in to a new plant is called ______...?

(A) Fertilization
(B) Germination

(C) Vernalization
(D) None of these

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The type of coordination through electrochemical signals is _______...?

(A) Nervous
(B) Chemical

(C) Mechanical
(D) All of these

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Examples of _______ properties involved melting, transition to a gas, change of durability and changes to crystal form....?

(A) Physical
(B) Chemical

(C) Nuclear
(D) Biological

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A loudspeaker changes _________ energy into sound energy....?

(A) Chemical
(B) Electrical

(C) Light
(D) Kinetic

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Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________...?

(A) Radiation fog
(B) Evaporation (mixing) fog

(C) Advection fog
(D) Upslope fog

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The female gametophyte of angiospermic plant is ______...?

(A) Embryo sac
(B) Ovule

(C) Ovary
(D) Carpel

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WBCs are also called as _________...?

(A) Leukocytes
(B) Lymphocytes

(C) Nucleotides
(D) Erythrocytes

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A set of metabolism reaction which maintain internal environment is ______...?

(A) Positive feedback
(B) Negative feedback

(C) Osmoregulation
(D) Homeostasis

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Acid deposition causes ______________________...?

(A) the greenhouse effect to lessen
(B) lakes and forests to die

(C) acid indigestion in humans
(D) all the above are correct

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The horizontal rows of the periodic table are called ______...?

(A) Groups
(B) Periods

(C) Sets
(D) Matrices

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The error caused by improper functioning of instrument is ______...?

(A) Determinant Error
(B) Systematic Error

(C) Indeterminant
(D) A and B

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A binocular uses _________ prisms to see distant objects....?

(A) Porro
(B) Schmidt

(C) Fresnel
(D) Kepler

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The post-mortem examination of a body is called __________...?

(A) Etymology
(B) autopsy

(C) Anatomy
(D) None of these

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Botany is also called _______ ...?

(A) Phytology
(B) Phycology

(C) Pedology
(D) Plantophyta

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The human eye acts like a ______...?

(A) Camera
(B) Telescope

(C) Projector
(D) Microscope

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The deficiency of vitamin E causes _______ ...?

(A) Weak immune system
(B) Weak bones

(C) Lack of appetite
(D) Sterility

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Skin has ___________ layers...?

(A) One
(B) Two

(C) Three
(D) Four

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Two resistances of 6 Ω and 12 Ω are connected in parallel. Their net resistance is ______...?

(A) 7 Ω
(B) 6 Ω

(C) 4 Ω
(D) 5 Ω

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The Gas is mobile phase in ______...?

(A) Liquid chromatography
(B) Solid chromatography

(C) Gas chromatography
(D) None of these

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Which colour of light is deviated least ________....?

(A) Red
(B) Blue

(C) Violet
(D) Green

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Pluviometer measures ___________...?

(A) Wind
(B) Strength of Plywood

(C) Rainfall
(D) None of these

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The number of spark plugs needed in a diesel engine is ______...?

(A) Zero
(B) 1

(C) 2
(D) 4

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The only non metal exists in liquid state is ___________...?

(A) Mercury
(B) Bromine

(C) Phosphorus
(D) Iodine

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The SI unit of Dipole moment is __________...?

(A) Debye
(B) Cm

(C) Weber
(D) Coulumb

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Cotton contains ______ cellulose....?

(A) 30%
(B) 65%

(C) 85%
(D) 95%

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The type of lens in our eye is ______...?

(A) Convex
(B) Concave

(C) Both a & b
(D) None of these

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Escape velocity depends on ________...?

(A) Mass of the object trying to escape
(B) Radius of the planet or celestial body

(C) Both mass and radius of the planet or celestial body
(D) The velocity of the rotating planet

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Atmospheric pressure at sea level is _______...?

(A) 746 mm
(B) 760 mm

(C) 820 mm
(D) None of these

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The Great Spot is on the planet __________...?

(A) Saturn
(B) Venus

(C) Mars
(D) Jupiter

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Caustic Soda is extensively used for making __________...?

(A) Surf
(B) Soap

(C) Plaster of Paris
(D) Gum

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A device which converts chemical energy into electrical energy is called __________...?

(A) motor
(B) generator

(C) moving-coil meter
(D) battery

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Smallest animal is _________...?

(A) Skunk
(B) Gorilla

(C) Tiger
(D) Cat

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Joint in which bones are joined together by fibrous tissues is called _____________ ...?

(A) Fibrous joint
(B) Cartilaginous joint

(C) Synovial joint
(D) Ball and socket joint

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The part of ear that is visible is called _______...?

(A) External Ear
(B) Pinna

(C) Internal ear
(D) both A & B

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The ability to attract shared pair of electron is called ______...?

(A) Electron Affinity
(B) Electronegativity

(C) Ionization Energy
(D) Shielding Effect

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The density of gases increases when its ______...?

(A) Pressure increased
(B) Temperature increased

(C) Volume increased
(D) None of these

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The small segment of DNA which has information to code one protein is called ______...?

(A) Nucleotide
(B) Polynucleotide

(C) Gene
(D) Exon

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The deficiency of vitamin K causes ________ ...?

(A) Loss of appetite
(B) Scurvy

(C) Sterility
(D) Blood clotting disorder

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The rear view mirror of a motor vehicle is ________...?

(A) Concave
(B) Plane

(C) Convex
(D) Biconcave

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A convex mirror always ___________ ...?

(A) Forms a real image
(B) Forms a virtual image

(C) Forms an inverted image
(D) Produces a larger image

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The turn ratios of a transformer is 10. It means ______...?

(A) Is = 10 Ip
(B) Np - 10Ns

(C) Ns = 10 Np
(D) Vs = 10 Vp

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At night, Plants intake __________ and release __________...?

(A) Oxygen – Carbon dioxide
(B) Carbon dioxide – Oxygen

(C) Oxygen – Carbon monoxide
(D) None of theseCarbon monoxide – Oxygen

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The exact duplication of DNA is called ______...?

(A) Duplication
(B) Replication

(C) Transcription
(D) Translation

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Other name of platelets _______...?

(A) Erythrocytes
(B) Leukocytes

(C) thrombocytes
(D) None of these

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A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls _________...?

(A) behind him
(B) in front of him

(C) into his hand
(D) by his side

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Bunsen burner is made stable by ______...?

(A) Increasing its length
(B) Increasing its mass

(C) Decreasing its base area
(D) Increasing its base area

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An Average Hummingbird’s heart rate per minute is __________....?

(A) 500 times
(B) 1000 times

(C) more than 1000 times
(D) more than 1200 times

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Despite the fluctuation in human body temperature. The temperature of human body remains at _________...?

(A) 35 °C
(B) 37 °C

(C) 42 °C
(D) 54 °C

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A chronometer meter measures __________ ...?

(A) Water waves
(B) Color contrast

(C) Time
(D) Sound waves

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The Earth takes ______ to revolve around the sun....?

(A) 365 days and 4 hours
(B) 365 days and 6 hours

(C) 365 days and 8 hours
(D) 365 days and 10 hours

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The taste of water is ______...?

(A) Sour
(B) Bitter

(C) Sweet
(D) Tasteless

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The most dense and heaviest planet is___________...?

(A) Jupiter
(B) Earth

(C) Mars
(D) Venus

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A telescope is an instrument that gathers _______ from distant sources....?

(A) Sound
(B) Light

(C) Heat
(D) Water

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A fixed temperature at which a pure liquid boils is called ______...?

(A) Melting point
(B) Freezing point

(C) Boiling point
(D) Both 'a' and 'b'

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During which process does heat transfer occur because of density differences__________...?

(A) Convection
(B) Radiation

(C) Conduction
(D) None of these

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Organ of human body which is considered on the largest organ is ______...?

(A) Skin
(B) Digestive tract

(C) Liver
(D) Brain

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Role of biotechnology in the production of food based on ___________...?

(A) Decomposition
(B) Respiration

(C) Digestion
(D) Fermentation

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Elements which have same number of protons but different number of neutrons are called as _________ ...?

(A) Isotopes
(B) Isomers

(C) Allotropes
(D) Allomers

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Afternoon rains in the equatorial region are the result of influences _______...?

(A) Land Breeze
(B) Monsoon

(C) Frontal
(D) Convectional

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Permanent hardness of water is due to the presence of __________...?

(A) Sodium bicarbonate
(B) Calcium sulfate

(C) Calcium bicarbonate
(D) None of these

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The study of the structure of the body is called _______ ...?

(A) Anthropobiology
(B) Anatomy

(C) Aphnology
(D) Apiology

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The Study of growth is called ______ ...?

(A) Auxology
(B) Autology

(C) Avionics
(D) Axiology

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Oscillations are damped due to the presence of ______...?

(A) Linear motion
(B) Restoring force

(C) Frictional force
(D) Mechanical force

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