Question

On reacting a compound of calcium (x) with water (y) is obtained. (Y) on boiling with NH4Cl a gas (Z) is obtained. X,Y and Z respectively are ??

Answer 1

Ca,Ca(OH)2,Cl2 hope it will help you

Answer 2

X is CaO.

Y is $Ca(OH)_2$.

Z is ammonia.

• Let X be calcium oxide or CaO.
• When CaO reacts with water it forms calcium hydroxide.
• The reaction is-
• $CaO+H_2O\rightarrow Ca(OH)_2$
• Y is calcium hydroxide.
• When calcium hydroxide reacts with ammonium chloride calcium chloride along with ammonia gas and water is formed.
• The reaction is as follows-
• $Ca(OH)_2+2NH_4Cl\rightarrow CaCl_2+2NH_3+2H_2O$.
• Thus in this reaction ammonia gas is obtained. So, Z is ammonia.