Question
Explain ambidentate ligand with example.

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If OA = a and OB = b, answer the following:

Match the structures of compounds given in Column I with the classes of compounds given in Column II.
| Column I | Column II | ||
| (i) | $\text{CH}_3-\text{CH}-\text{CH}_3\\ \ \ \ \ \ \ \ \ \ \ \ \ \ |\\ \ \ \ \ \ \ \ \ \ \ \ \ \text{X}$ | (a) | Aryl halide |
| (ii) | $\text{CH}_2==\text{CH}-\text{CH}_2-\text{X}$ | (b) | Alkyl halide |
| (iii) | ![]() | (c) | Vinyl halide |
| (iv) | $\text{CH}_2==\text{CH}-\text{X}$ | (d) | Allyl halide |

| Time/sec | Total pressure/atm |
| 0 | 0.30 |
| 300 | 0.50 |
$\text{C}_6\text{H}_5\text{NO}_2\xrightarrow[]{\text{Fe}/\text{HCl}}\text{A}\xrightarrow[273\text{K}]{\text{NaNO}_2+\text{HCl}}\text{B}\xrightarrow[\Delta]{\text{H}_2\text{O}/\text{H}^+}\text{C}$