Ncert Exercises & Solutions

Complete the following chemical equations.

$Z + 3 {LiAlH}_{4} \to X + 3 LiF + 3 {AlF}_{3}$

$X + 6 H_{2} O \to Y + 6 H_{2}$

$3 X + 3 O_{2} \overset{∆}{\to} B_{2} O_{3} + 3 H_{2} O$

(i) $4 {BF}_{3} + 3 {LiAlH}_{4} \to \underset{Dborane (X)}{2 B_{2} H_{6}} + 3 LiF + 3 {AlF}_{3}$

(ii) $\underset{(X)}{B_{2} H_{6}} + 6 H_{2} O \to \underset{Orthodboric acid}{2 H_{3} {BO}_{3}} + 6 H_{2}$

(iii) $\underset{(X)}{B_{2} H_{6}} + 3 O_{2} \overset{∆}{\to} B_{2} O_{3} + 3 H_{2} O$