Explain Sandmeyer reaction.

Give one example to the following reactions. (i) Swarts reaction. (ii) Wurtz-Fittig reaction. (iii) Sandmeyer's reaction.

Explain Cannizzaro reaction with an example.

Explain Cannizzaro reaction with an example.

Explain Cannizzaro reaction with an example.

Explain Swartz reaction.

Explain Swartz reaction.

Explain haloform reaction.

Explain iodoform reaction.

In the preparation of aryl halides by Sandmeyer's reaction, name the i) catalyst used ii) gas liberated.