Among the statements (a) - (d), the correct ones are :
(a) Decomposition of hydrogen peroxide gives dioxygen.
(b) Like hydrogen peroxide, compounds, such as KCIO3, Pb(NO3)2 and NaNO3 when heated liberate dioxygen.
(c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
(d) Hydrogen peroxide is used for the manufacture of sodium perborate.
Solution
H<sub>2</sub>O<sub>2</sub> $\buildrel \Delta \over
\longrightarrow$ 2H<sub>2</sub>O +O<sub>2</sub>
<br><br>KClO<sub>3</sub>, Pb(NO<sub>3</sub>)<sub>2</sub>, NaNO<sub>3</sub> on heating will release
O<sub>2</sub> gas.
<br><br>2H<sub>3</sub>BO<sub>3</sub> + 2NaOH + 2H<sub>2</sub>O<sub>2</sub>
$\to$ Na<sub>2</sub>[B<sub>2</sub>(O<sub>2</sub>)(OH)<sub>4</sub>] + 4H<sub>2</sub>O
About this question
Subject: Chemistry · Chapter: p-Block Elements · Topic: Group 13: Boron Family
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