Question

Select the correct option:
1. The carbon content in Lignite is about
(a) 40%
(b) 50%
(c) 75%
(d) 90%
2. In destructive distillation, coal is heated strongly to about
(a) 5000°C
(b) 1000°C
(c) 100°C
(d) 10000°C
3. In the fractional distillation of petroleum, which liquid is obtained in the boiling point range of 30°C
to 120°C?
(a) Petrol
(b) Diesel
(c) Bitumen
(d) Lubricating oil
4. Which foul-smelling substance is added to the cooking gas supplied in cylinders?
(a) Ethane
(b) Polyvinyl chloride (c) Methane
(d) Mercaptan
5. Which of the following is usually referred as black gold?
(a) Coke
(b) Coal tar
(c) Natural gas
(d) Petroleum​

Answer 1

Answer:

1 ) 50 - 40

2) 1000° c

3) Lubricating

4) Ethyl mercaptan

5) coal tar

Answer 2

Answer:

1.(c. 75%)

2.(b. 1000°c)

3. I don't know

4.

5.