Question

A. VERY SHORT ANSWER TYPE QUESTIONS
1. Name the following:
(a) three types of coal.
(b) two by products obtained from fractional distillation of petroleum.
2. What are exhaustible natural resources ?
3. What is the commercial importance of coal tar?
4. What is compressed natural gas?​

Answer 1

Answer:

1. coke ,coal gas,coaltar

2.petrol ,diesel,kerosene

3.resources that can be exhausted are called natural resources

4.This medication is used on the skin to treat the itching, scaling, and flaking due to skin conditions such as psoriasis or seborrheic dermatitis.

5.Compressed natural gas is a fuel that can be used in place of petrol, diesel fuel, and liquefied petroleum gas.

Answer 2

Answer:

(a) three types of coal

1.Anthracite coal

2.Lignity

3.Bituminois

(b) The products obtained from the fractional distillation of petroleum is Petrol (or gasoline), naptha, kerosene, diesel oil, lubricating oil, fuel oil, grease wax, and some residue.

(c)