| 21. | The shape of methane molecule is |
A. Angular | |
B. planar | |
C. linear | |
D. tetrahedron |
| 22. | What is the bond angle between carbon and hydrogen in methane molecule? |
A. 105° | |
B. 120° | |
C. 180° | |
D. 109°28 |
| 23. | The correct statement about methane is – |
A. It is produced by the bacterial decomposition of plant and animal matter buried below in shallow places. | |
B. It is the first member of the saturated hydrocarbon series. | |
C. It is also called marsh gas. | |
D. all of the above |
| 24. | Which gas is produced by the reaction of water with aluminum carbide? |
A. methane | |
B. ethane | |
C. ethylene | |
D. acetylene |
| 25. | methane is made in the lab |
A. By heating sodium acetate with sodalime | |
B. By heating sodium propionate with sodalime | |
C. By heating sodium benzoate with sodalime | |
D. none of these |
| 26. | Which of the following gas is known as marsh gas? |
A. methane | |
B. ethane | |
C. ethylene | |
D. acetylene |
| 27. | Which gas is obtained by mixing the gases coming out of the septic tank? |
A. methane | |
B. ammonia | |
C. hydrogen | |
D. nitrogen |
| 28. | What is the main component of gobar gas? |
A. ethane | |
B. methane | |
C. propane | |
D. acetylene |
| 29. | The main component of natural gas is |
A. methane | |
B. ethane | |
C. butane | |
D. hydrogen |
| 30. | What is the main component of bio gas? |
A. hydrogen | |
B. methane | |
C. butane | |
D. acetylene |