Chemistry
A gas 'P' gives dense white fumes with chlorine. It's aqueous solution gives a blue colour with copper (II) hydroxide. Give the name and formula of the gas P.
Answer
Gas 'P' is Ammonia and its formula is NH3.
With chlorine, ammonia gas gives dense white fumes of NH4Cl.
8NH3 [excess] + 3Cl2 ⟶ 6NH4Cl + N2
Reaction of copper (II) hydroxide with aqueous solution of Ammonia (NH4OH) is given below:
Cu(OH)2 + (NH4)2SO4 + 2NH4OH ⟶ [Cu(NH3)4]SO4 + 4H2O
Related Questions
Name the gas evolved when the following mixtures are heated :
(i) Calcium hydroxide and Ammonium chloride.
(ii) Sodium nitrite and Ammonium chloride.
From the list of the gases — Ammonia, ethane, hydrogen chloride, hydrogen sulphide, ethyne — Select the gas which is used as a reducing agent in reducing copper oxide to copper.
Copy and complete the following table relating to important industrial process
Name of the process Temperature Catalyst Equation for the catalyzed reaction Haber's process Copy and complete the following equations.
(a) AlN + H2O ⟶
(b) 2NH3 + 3PbO ⟶
(c) NH3 + 3Cl2 ⟶
(d) NH3 + CO2 ⟶
(i) Which property of ammonia is illustrated by equation (c)?
(ii) What important fertiliser is prepared from equation (d)? State the conditions.