Give reasons: (d)Carbonate and sulphide ores are usually converted into oxides during the process of extraction.

Give reasons why carbon is tetravalent.

What name is given to carbon reduction process for extracting the metal?

Give reasons: Name one ore each of the manganese and chromium.

Photorespiration is a wasteful process. Give two reasons.

Give reason: among transition metals, the highest oxidation state is exhibited in oxoanion of a metal.

Ozone acts as a powerful oxidizing agent. Give reason.

Out of C and CO, which is better reducing agent at the lower temperature range in the blast furnance to extract iron from the oxide ore?

Give reasons for the following: Nitrogen exhibits +5 oxidation state. But it does not form pentahalide.

Give reasons for the following: Nitrogen exhibits +5 oxidation state. But it does not form pentahalide.