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
Related Questions
More WBBSE Moderate level questions
1/12
Q.
Write, with the balanced chemical equation, what happens when dilute sulfuric acid is added to...
A.
When dilute sulfuric acid (H2SO4) is added to ferrous sulfide (FeS), a...
Q.
Write the balanced chemical equation for the reaction that occurs in the Haber process for...
A.
Balanced Chemical Equation for the Haber Process: N2 (g) + 3H2 ​...
Q.
Write, with the balanced chemical equation, what happens when H2S gas is passed through an...
A.
When hydrogen sulfide (H2S) gas is passed through an aqueous solution of...
Q.
What colour is produced when Hâ‚‚S gas is passed through a solution of potassium dichromate...
A.
(c) Green Explanation Hydrogen sulphide (Hâ‚‚S) acts as a reducing agent. When...
Q.
Write the chemical equation for the reaction between two gases to produce a solid substance.
A.
The reaction between ammonia gas (NH₃) and hydrogen chloride gas (HCl) produces...
Q.
Write the name and formula of an organic fertiliser produced from ammonia.
A.
Organic Fertilizer produced from ammonia: Name: Urea Formula: CO(NH2)2 OR Black Precipitate...
Q.
The gas which is identified by using Nessler’s reagent is (a) NO2 (b) Hâ‚‚S (c)...
A.
(d) NH₃ Explanation Nessler's reagent is used to detect ammonia (NH₃) gas....
Q.
Write with balanced chemical equation, what happens when hydrogen sulphide is passed through aqueous solution...
A.
When hydrogen sulphide (Hâ‚‚S) is passed through an aqueous solution of lead...
Q.
Write with balanced chemical equation, what happens when dry ammonia gas is passed over heated...
A.
When dry ammonia gas is passed over heated sodium, sodamide (sodium amide)...
Q.
Write how nitric oxide is produced by the oxidation of ammonia with atmospheric oxygen, mentioning...
A.
In the Ostwald process, ammonia is oxidised by atmospheric oxygen by passing...
Q.
The substance used for drying ammonia gas is:Â (a) CaClâ‚‚ (b) CaO (c) Hâ‚‚SOâ‚„ (d) Pâ‚‚Oâ‚…
A.
(b) CaO Explanation Quick lime (CaO) is used for drying ammonia gas...
Q.
Fill up the blank: CaC₂ + N₂ → __________ + C
A.
CaCNâ‚‚ (Calcium cyanamide)