| Bond Enthalpy MCQ | (I) | (II) | (III) |
| 1. |
5. |
 |
 |
| 1996/MCQ31 | 1995/MCQ31 |
| 2. |
6. |
 |
 |
| 1997/MCQ31 | 2011/MCQ32 |
| 3. | 7. |
 |
 |
| 1999/MCQ33 | 2014/MCQ11 |
| 4. |
8. |
 |
 |
| 2005/MCQ8 | 1995/MCQ32 |
| 9. | |
 |
|
| 2017/ MCQ18 | |
| 10. | |
 |
|
| 1994/MCQ27 | |
| 11. | |
 |
|
| 2018/8 | |
| 12. | |
 |
|
| 2016/8 | |
| 13. | |
 |
|
| 2016/MCQ14 | |
| 14. | |
 |
|
| 2014(Revised)/3 | |
| 15. | |
 |
|
| 2013(Revised)/3 | |
| 16. | |
 |
|
 |
|
 |
|
| 1991/18 | |
| 17. | |
 |
|
 |
|
| 1997/15 | |
| 18. | |
 |
|
| 1993/16 | |
| 19. | |
 |
|
 |
|
| 1995/12 | |
| 20. | |
 |
|
 |
|
 |
|
