Question

Among the statements (a) - (d), the correct ones are -
(a) Decomposition of hydrogen peroxide gives dioxygen.
(b) Like hydrogen peroxide, compounds , such as $KCl{O}_3,Pb(N{O}_3{)}_2$ and $NaN{O}_3$ when heated liberated dioxygen.
(c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
(d) Hydrogen peroxide is used for the manufacture of sodium perborate.

• A. (a), (b) and (c) only
• B. (a) and (c) only
• C. (a), (b) , (c) and (d)
• D. (a), (c) and (d) only

Answer 1

The correct option is C (a), (b) , (c) and (d)

Decomposition reaction,
(a) $H_2{O}_2\to 2H_{2}O+O_2$
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(b) $KCl{O}_3\underset{Mn{O}_2}{\overset{\Delta }{\to }}KCl+\frac{3}{2}{O}_2$

​$Pb\left(N{O}_3\right)\stackrel{\Delta }{\to }PbO+2N{O}_2+\frac{1}{2}{O}_2$
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$NaN{O}_3\stackrel{\Delta }{\to }NaN{O}_2+\frac{1}{2}{O}_2$
​
(c)
$\text{2-Ethylanthraquinol}\underset{H_2/Pd}{\stackrel{O_2\left(air\right)}{\rightleftharpoons }}\text{2-Ethylantraquinone}+H_2{O}_2$
​
(d) Hydrogen peroxide is used for the manufacture of sodium perborate.

All statements are correct.