BASIC SCIENCE GENERAL KNOWLEDGE QUESTIONS AND ANSWERS 36 to 40

36.Which of the following metals can displace hydrogen from dilute acids ?

Zinc

37.Reaction of alcohol, with carboxylic acid is known as

Esterification

38.Saponification involves the hydrolysis of fats and oils by

Caustic acid

39.Which of the following gases is obtained by the reaction of water with Calcium Carbide ?

Methane

40.The gas liberated during the reaction of copper with dilute nitric acid is

NO

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