Chemistry
Give balanced equations for the following conversions :
(a) Ammonia to nitrogen using an acidic gas.
(b) Ammonia to brown gas.
(c) Ammonia to nitrogen trichloride
(d) Ammonia solution to an amphoteric hydroxide
(e) A nitride of a trivalent metal to ammonia
(f) Lead oxide to lead
Ammonia
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Answer
(a) Ammonia to nitrogen using an acidic gas :
8NH3 [excess] + 3Cl2 ⟶ 6NH4Cl + N2
(b) Ammonia to brown gas:
2NO + O2 ⟶ 2NO2 [brown gas]
(c) Ammonia to nitrogen trichloride
NH3 + 3Cl2 [excess] ⟶ 3HCl + NCl3
(d) Ammonia solution to an amphoteric hydroxide :
AlCl3 + 3NH4OH ⟶ 3NH4Cl + Al(OH)3
(e) A nitride of a trivalent metal to ammonia:
AlN + 3H2O ⟶ Al(OH)3 + NH3 ↑
(f) Lead oxide to lead
2NH3 + 3PbO ⟶ 3Pb + 3H2O + N2 [g]
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Related Questions
Distinguish between the following (using ammonia solution) :
(a) Calcium chloride and zinc chloride.
(b) Ferric salt and ferrous salt
(c) Zinc nitrate and lead nitrate
Name:
(a) the gas which is prepared by Haber's process.
(b) two gases which give dense white fumes with ammonia.
(c) one salt of ammonia in each case which is used in:
(i) dry cell
(ii) explosives
(iii) medicine
(d) an acidic gas which reacts with a basic gas liberating a neutral gas
(e) a metallic chloride soluble in ammonium hydroxide
(f) the gas obtained when ammonia burns in an atmosphere of oxygen without any catalyst
(g) a nitride of a divalent metal which reacts with warm water liberating ammonia
(h) an amphoteric oxide reduced by the basic gas
(i) a white salt produced by an acidic gas and a basic gas
(a) What do you observe when ammonium hydroxide is added to the aqueous solution of :
(i) FeSO4
(ii) Iron (III) chloride.
(iii) Lead nitrate
(iv) Zinc nitrate
(b) Write balanced equation for Q.8(a).
When ammonium hydroxide is added to solution B, a pale blue precipitate is formed. This pale blue precipitate dissolves in excess ammonium hydroxide giving an inky blue solution. What is the cation (positive ion) present in solution B? What is the probable colour of solution B.