Chemistry Carbon and its Compounds Questions & Answers - 3

Question: 11

What are detergents?

Detergents are sodium salts of benzene sulphonic acids. Thus instead of - COOH group in soaps, detergents contain - SO₃H group.

Question: 12

What is Clemmensen reduction?

When acetone is reduced with zinc amalgam and HCL, it gives propane. This reaction is known as Clemmensen reduction.

Question: 13

What is absolute alcohol?

100% pure alcohol is known as absolute alcohol.

This can be prepared by refluxing rectified spirit with quick lime for 5 to 6 hours.

Question: 14

What is the action of ammonia on acetic acid?

Acetic acid reacts with ammonia and forms ammonium acetate, which on heating gives acetamide.

Question: 15

State the important uses of ethanoic acid?

It is used in the preservation of pickles.

It is used in the manufacturing of rayon.

It is used as a laboratory reagent.

It is used to coagulate rubber from latex.