Which one of the following is a bio molecule...?

PPSC Past Papers

Latest MCQs

Which one of the following is a bio molecule...?

(A) Formic Acid

(B) Tartic Acid

(C) Glutamic Acid

(D) Glutaric Acid

Comments

Latest MCQs

The power of combining of an atom with other atoms to form molecules or compounds is called...?

(A) Atomic Mass

(B) Valency

(C) Electronegativity

(D) Ionization Energy

Comments

Latest MCQs

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

(A) Nitrogen

(B) Nydrogen

(C) Neon and argon

(D) Oxygen and nitrogen

Comments

Latest MCQs

The average kinetic energy of the molecules of a body determines...?

(A) heat

(B) temperature

(C) internal energy

(D) none

Comments

Latest MCQs

In constructive reaction _____ molecules are formed....?

(A) Small

(B) Medium

(C) Equal

(D) Large

Comments

Latest MCQs

Which of the following is a diverse group of hydrophobic molecules...?

(A) Carbohydrates

(B) Lipids

(C) Proteins

(D) Nucleic acids

Comments

Latest MCQs

A (an) ______ is a pure substance which contains only one type of molecule made up of atoms of more than one element....?

(A) Compound

(B) Element

(C) Molecule

(D) Atom

Comments

Latest MCQs

Which law states that “equal volumes of all gases, at the same temperature and pressure, have the same number of molecules...?

(A) Boyle’s law

(B) Charles’ law

(C) Gay-Lussac’s law

(D) Avogadro’s law

Comments

Latest MCQs

Which is a water purification technology that uses a semipermeable membrane to remove ions, molecules and larger particles from drinking water...?

(A) Filtration

(B) Reverse Osmosis (RO)

(C) Sedimentation

(D) Distillation

Comments

Latest MCQs

The ozone molecule contains which type of bonding__________...?

(A) Dative bond

(B) Covalent bond

(C) Both A and B

(D) Ionic Bond

Comments

Latest MCQs

A formula that indicates actual number and type of atoms in a molecule is called...?

(A) Chemical formula

(B) Empirical formula

(C) Molecular formula

(D) Formula mass

Comments

Latest MCQs

The smallest particle of any substance having all properties of that molecules is called...?

(A) An atom

(B) A molecule

(C) A compound

(D) An element

Comments

Latest MCQs

What happens to the molecules of a gas when the gas changes into a liquid...?

(A) They move closer and lose energy

(B) They move closer and gain energy

(C) They move apart and lose energy

(D) They move apart and gain energy

Comments

Latest MCQs

The symbolic representation of molecule of a compound is called...?

(A) Equation

(B) Structure

(C) Formula

(D) Reaction

Comments

Latest MCQs

Which type of bond is formed between H₂O molecules...?

(A) Hydrogen bond

(B) Ionic bond

(C) Covalent bond

(D) All of these

Comments

Latest MCQs

The liquid molecules leave the surface of liquid in evaporation process because ______...?

(A) Energy is low

(B) Energy is moderate

(C) Energy is high

(D) None of these

Comments

Latest MCQs

An atom is neutral but when an atom or molecule that carries net electric due to gain or loss of an electron is called an...?

(A) Ion

(B) Molecule

(C) Anion

(D) Cation

Comments

Latest MCQs

Plant utilizes simple inorganic molecules (CO2 and H2O) to prepare _____...?

(A) Glucose and water

(B) Glucose and oxygen

(C) Oxygen and water

(D) Oxygen and Glucose

Comments

Latest MCQs

The carboxylate end of the soap molecule that is attracted to water is called...?

(A) Hydrophobic end

(B) End point

(C) Hydrophilic end

(D) None

Comments

Latest MCQs

Rainbow is seen after rain because of hanging molecules of water which act as __________...?

(A) Lens

(B) Prism

(C) Mirror

(D) Slabs

Comments

Latest MCQs

The breakdown of food molecules to release energy is called...?

(A) Photosynthesis

(B) Fermentation

(C) Respiration

(D) Mitosis

Comments

Latest MCQs

A gas in a container of fixed volume is heated. What happens to the molecules of the gas...?

(A) They collide less frequently

(B) They expand

(C) They move faster

(D) They move further apart

Comments

Latest MCQs

In living organisms energy is stored in a special molecule called...?

(A) ATP

(B) NADH

(C) RNA

(D) DNA

Comments

Latest MCQs

Phosphorus is an essential component of one of the following biological molecules:...?

(A) Amino acids

(B) Nucleic acids

(C) Carbohydrates

(D) None

Comments

Latest MCQs

Identify the monoatomic molecule among the following...?

(A) Helium

(B) Ozone

(C) Hydrogen

(D) Nitrogen

Comments

Latest MCQs

According to kinetic molecular theory, the pressure exerted by a gas is caused by the _______...?

(A) Bombardment of the gas molecules on the walls of the container

(B) Collision between gas molecules

(C) Large distances between gas molecules

(D) Random motion of the gas molecules

Comments

Latest MCQs

Which one of the following is a bio molecule...? Mcqs

PPSC Past Papers