Coal and Petroleum Worksheet-3

Coal and Petroleum Worksheet-3

1. Natural gas mainly consists of:

(a) C₂H₆             (b) CH₄              (c) C₃H₈             (d) C₄H₁₀

2. Gobar gas produced from animal and plant waste contains:

(a) ethane          (b) methane      (c) propane       (d) acetylene

3. 2C + O₂ + 4N₂ → ?

(a) 2CO + 2N₂  (b) CO + H₂      (c) CO + CH₄    (d) CO + NO₂

4. C + H₂O (steam) is passed over red hot coke to produce:

(a) CO₂ + H₂     (b) CO + O₂       (c) CO + H₂       (d) O₂ + H₂ + C

5. Destructive distillation of coal produces coal gas which is a mixture of:

(a) CH₄ + H₂ + CO                       (b) C₄H_{10 +} H₂

(c) C₄H_{10 +} H₂O                            (d) C₂H_{6 +} H_{2 +} O₂

6. In LPG cylinder, the gas is liquefied by:

(a) increasing volume                 (b) applying pressure

(c) increasing temperature        (d) replacing pressure

7. The product obtained by the dry distillation of coal is:

(a) natural gas                              (b) water gas

(c) producer gas                           (d) coal gas

8. Which of the following is not a solid fuel?

(a) Paraffin       (b) Coal              (c) Tallow          (d) Benzene

9. In fractional distillation of petroleum, the vapours with highest boiling point:

(a) condense in upper most portion

(b) condense in lower most portion

(c) condense in middle portion

(d) none of these

10. Calorific value is expressed as:

(a) calories per gram                   (b) kilojoules per gram

(c) kilocalories per gram            (d) calories per kilogram

Answer Key:

(1)-(b); (2)-(b); (3)-(a); (4)-(c); (5)-(a); (6)-(b); (7)-(d); (8)-(d); (9)-(b); (10)-(a)