Question

When gas C is mixed with gas B, dense white fumes are seen and there is no other product. What is the name of the product of the reaction between gas B and gas C?

[Note : Gas B turns moist red litmus paper blue]

• A. Ammonium chloride
• B. Hydrogen
• C. Nitrogen
• D. None of these

Answer 1

Answer: (A)

Ammonium chloride

Gas B is ammonia while gas C is HCl. When ammonia gas is mixed with hydrochloric acid in the air, dense white fumes of ammonium chloride are formed. Gas B is basic in nature which turns red litmus paper blue which is ammonia.

Reaction:

$HCl+N{H}_3⟶N{H}_{4}Cl$

(C) (B)