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

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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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Which substance has a pH value closest to neutral...?

(A) Ammonia
(B) Blood

(C) Milk
(D) Organic juice

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What is an example of a synthesis reaction...?

(A) Water decomposing into Hydrogen and Oxygen
(B) Carbon combining with Oxygen to form Carbon Monoxide

(C) Nitrogen and Oxygen combining to form Nitrogen Dioxide
(D) Hydrogen and Oxygen combining to form water

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Conversion of free energy into different forms by living organisms is called...?

(A) Biophysics
(B) Biomechanics

(C) Bioenergetics
(D) Biochemistry

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An iron nail/steel rod can be magnetize by...?

(A) By passing an electric current around it
(B) By heating it on a high flame

(C) By hammering
(D) By keeping it with an iron rod

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Which type of wastes are classified as Biodegradable waste...?

(A) Waste from plastic industries
(B) Vegetables waste from farms

(C) Wasted water from homes
(D) None

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_______________ causes biomagnification problem in the Ecosystem....?

(A) Lead
(B) Mercury

(C) Chromium
(D) Copper

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A substance that can donate a pair of electron to form coordinate covalent bond...?

(A) Lewis acid
(B) Lewis base

(C) Bronsted—Lowery acid
(D) Bronsted-Lowery base

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Animal which captures and readily kills living animals for its food is called___________...?

(A) Parasite
(B) Scavenger

(C) Predator
(D) Mammal

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What is a Geiger Counter used to measure...?

(A) Radioactivity
(B) Pressure

(C) Water flow
(D) None of these

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