Chemistry · S and p Block Elements

Lithium reacts with the oxygen in the air to form lithium oxide (Li₂O) and with nitrogen to form lithium nitride (Li₃N). These reactions occur when lithium is heated in the air, and both products are formed as a result of these reactions. Therefore, the correct answer is 'Both (a) & (b)', indicating that both lithium oxide and lithium nitride are produced.

Option A and Option B are partially correct because they only consider one aspect of the reaction. Option C is incorrect because Li₂O₂ and Li₂CO₃ are not the direct products of lithium reacting with air.

This option is partially correct because lithium does form lithium oxide when reacting with oxygen in the air, but it's not the complete reaction with air.

This option is partially correct because lithium forms lithium nitride when reacting with nitrogen in the air, but it's not the complete reaction with air.

This option is incorrect because these compounds do not form directly when lithium reacts with the components of air.

This option is correct. Lithium reacts with oxygen to form lithium oxide and with nitrogen to form lithium nitride. These reactions occur simultaneously when lithium is exposed to air.