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Question

Chemistry Question on p -Block Elements

For the isolation of inert gases from air, the nitrogen and oxygen present are removed bypassing air over heated

A

Calcium carbide

B

Copper metal

C

Activated charcoal

D

Finely divided mixture of Pt and Pd

Answer

Calcium carbide

Explanation

Solution

Oxygen and nitrogen present in air can be removed by strongly heating with calcium carbide CaC2+N2>[Δ]CaCN2+C {CaC_2 + N_2 ->[\Delta ] CaCN_2 + C} 2C+O2>[Δ]2CO {2C + O_2 ->[\Delta] 2CO}