For the preparation of N2 gas in the laboratory, the mixed aqueous solution of which of the following two compounds is used?
- NaNO2 and NH4Cl
- NaNO3 and NH4Cl
- NaCI and NH4NO3
- NaNO3 and NH4NO3
WBBSE
Class X
Physical Science
Inorganic Chemistry
01 Mark
2023
a. NaNOâ‚‚ and NHâ‚„Cl
Explanation:
In the laboratory, nitrogen gas is prepared by reacting sodium nitrite (NaNOâ‚‚) with ammonium chloride (NHâ‚„Cl) in aqueous solution:
NaNO₂ + NH₄Cl → N₂ ↑ + 2H₂O + NaCl
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