Ncert Exercises & Solutions

9.20 Complete the following chemical reactions.

(i)

(ii)

(iii)

(v)

(vi)

Classify the above into (a) hydrolysis, (b) redox and (c) hydration reactions.

(i)

P b S_{(s)} + H_{2} O_{2 (a q)} \to P b S O_{4 (s)} + H_{2} O_{(I)}

$H_{2} O_{2}$ is acting as an oxidizing agent in the reaction. Hence, it is a redox reaction.

(ii) $2 M n {O^{-}}_{4 (a q)} + 5 H_{2} O_{2 (g)} \to 6 {H^{+}}_{(a q)} \to 2 M {n^{2 +}}_{(a q)} + 8 H_{2} O_{(I)} + 5 O_{2 (g)}$

$H_{2} O_{2 (a q)}$ is acting as a reducing agent in the acidic medium, thereby oxidizing $M n {O^{_{-}}}_{4 (a q)}$ . Hence, the given reaction is a redox reaction.

(iii) $C a O_{(s)} + H_{2} O_{(g)} \to C a {(O H)}_{2 (a q)}$

The reactions in which a compound reacts with water to produce other compounds are called hydrolysis reactions. The given reaction is hydrolysis.

(iv) $2 A I C I_{3 (g)} + 3 H_{2} O_{(I)} \to A I_{2} O_{3 (s)} + 6 H C L_{(a q)}$

The reactions in which a compound reacts with water to produce other compounds are called hydrolysis reactions. The given reaction represents hydrolysis of $A I C L_{3}$

(v) $C a_{3} N_{2 (s)} + 6 H_{2} O_{(I)} \to 3 C a {(O H)}_{2 (a q)} + 2 N H_{3 (g)}$

The reactions in which a compound reacts with water to produce other compounds are called hydrolysis reactions. The given reaction represents hydrolysis of $C a_{3} N_{2} .$

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions