Chemistry

Question 1

1Fats and oils are esters of glycerol and

Easy

A. fatty acids B. ethanol C. amino acids D. glucose

Question 2

2Hydrogenation of vegetable oils produces

Easy

A. glycerol only B. ethanol C. soap D. margarine

Question 3

3The ester formed from ethanoic acid and ethanol is

Easy

A. ethyl methanoate B. propyl ethanoate C. ethyl ethanoate D. methyl ethanoate

Question 4

4Esters are known for their

Easy

A. metallic lustre B. strong acidity C. pleasant, fruity smells D. high melting points

Question 5

5Detergents are better than soap in hard water because they

Hard

A. are natural B. are cheaper always C. do not form scum with Ca²⁺ and Mg²⁺ D. are acidic

Question 6

6Fats and oils are esters of

Easy

A. glucose and water B. amino acids C. ethanol and ethanoic acid D. glycerol and fatty acids

Question 7

7The alkaline hydrolysis of a fat produces

Hard

A. ester and water B. soap and glycerol C. polymer D. acid and alcohol only

Question 8

8Soap is made by boiling fats with

Easy

A. sugar B. hydrochloric acid C. water only D. sodium hydroxide

Question 9

9Amides are formed from carboxylic acids and

Hard

A. alcohols B. ammonia or amines C. alkenes D. water

Question 10

10Boiling a fat or oil with sodium hydroxide gives

Easy

A. soap and glycerol B. ester and water C. alcohol only D. sugar