| List-I | List-II | ||
| A. | C2H4 | I. | 3 σ bonds, 2 π bonds |
| B. | C2H2 | II. | 3 σ bonds, one lone pair |
| C. | CH4 | III. | 4 σ bonds |
| D. | NH3 | IV. | 5 σ bonds, 1 π bond |
| Column-I (Molecule) |
Column-II (Bond enthalpy) \(\left(k J \mathrm{~mol}^{-1}\right)\) |
||
| A. | HCl | I. | 435.8 |
| B. | \(\mathrm{N_2}\) | II. | 498 |
| C. | \(\mathrm{H_2}\) | III. | 946.0 |
| D. | \(\mathrm{O_2}\) | IV. | 431.0 |
| 1. | A-III, B-IV, C-I, D-II | 2. | A-IV, B-I, C-III, D-II |
| 3. | A-IV, B-III, C-II, D-I | 4. | A-IV, B-III, C-I, D-II |