Coal and Its Formation

Q.

Which of the following is not a constituent of petroleum?

1. Paraffin wax

2. Lubricating oil
3. Petrol
4. Coke

Q. The slow conversion of wood into coal by a biochemical process extending over millions of years is called as ___________.

1. catenation
2. coal mining
3. destructive distillation
4. carbonization

Q. Which method is used to separate petroleum into its components?

1. Fractional distillation
2. Burning
3. Carbonisation
4. Evaporation

Q.

Which of the following is not a constituent of petroleum?

1. Paraffin wax

2. Lubricating oil
3. Petrol
4. Coke

Q.

State the functions of the following apparatus:

Retort.

Q. Which method is used to separate petroleum into its components?

1. Burning
2. Fractional distillation
3. Evaporation
4. Carbonisation

Q. 13.How are the following formed a] Coal b] Petroleum

Q. Which type of coke is considered as pure coke?

1. The coke which contain less quantity of carbon
2. The coke which contain less quantity of sulphur
3. The coke which contain less quantity of ash
4. Both b and c

Q. Describe how coal is formed from dead vegetation. What is this process called? [2 marks]

Q. Coal formation is a:

1. Slow change
2. None of the above
3. Fast change
4. Periodic change

Q. Which of the following conditions favour peat formation?

1. Water logging
2. Water flow
3. More nutrients
4. Low nutrients
5. Low acidity
6. High acidity
7. High temperature
8. Low temperature
9. Excess of oxygen
10. Lack of oxygen

Q.

The by-products of coal are obtained when coal is:

1. heated in absence of air.
2. cooled in presence of air.
3. cooled in absence of air.
4. heated in presence of air.

Q. Which method is used to separate petroleum into its components?

1. Evaporation
2. Carbonisation
3. Burning
4. Fractional distillation

Q. Petroleum and coal can be prepared in a laboratory.

1. True
2. False

Q.

Coal is an/a:

1. Exhaustible resource

2. Inexhaustible resource

3. Potential resource

4. None of these