Which of the following does not affect the boiling point...? Mcqs

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Which of the following does not affect the boiling point...?

(A) Intermolecular forces
(B) External pressure

(C) Initial temperature of liquid
(D) Nature of liquid

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When water is filled in a bottle and is allowed to freeze, the bottle breaks because...?

(A) Water expands on freezing
(B) Bottle contracts at freezing point

(C) temperature outside the bottle is less than that inside the bottle.
(D) None of the above

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The speed of sound is maximum in _____...?

(A) Gases
(B) Solids

(C) Liquids
(D) Plasma

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Techniques for manipulation of gene to achieve desirable characters are called...?

(A) Biotechnology
(B) Biochemistry

(C) Genomics
(D) Gene Therapy

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Water vapour turns into clouds in the atmosphere when:...?

(A) It rains
(B) The temperature rise

(C) Dew point is reached
(D) Evaporation takes place

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The carbohydrates which contain the aldehyde group are called...?

(A) Saccharides
(B) Ketoses

(C) Pentoses
(D) Aldoses

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Which of the following statements describes pepsin...?

(A) It is manufactured by the pancreas
(B) It helps stabilize fat-water emulsions

(C) It splits maltose into monosaccharides
(D) It begins the hydrolysis of proteins in the stomach

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The only source of energy on earth is ____...?

(A) Moon
(B) Star

(C) Water
(D) Sun

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Total mass of the reactants and products will remain conserved during a chemical reaction, this statement is called _____...?

(A) Law of definite proportions
(B) Law of conservation of mass

(C) Law of multiple proportions
(D) Law of reciprocal proportions

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The term PVC used in the plastic industry stands for______________...?

(A) Phosphavinyl chloride
(B) Phosphor vanadiu chloride

(C) Polyvinyl chloride
(D) Polyvinyl carbobate

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