Among statement (1) – (4), the correct ones are ( 1 ) Decomposition of hydrogen peroxide gives dioxygen. ( 2 ) Like hydrogen perioxide, compound, such as K C l O 3 , P b ( N O 3 ) 2 and N a N O 3 when

Question

Among statement (1) – (4), the correct ones are
$(1)$ Decomposition of hydrogen peroxide gives dioxygen.
$(2)$ Like hydrogen perioxide, compound, such as $K C l O_{3}, P b (N O_{3})_{2}$ and $N a N O_{3}$ when heated liberate dioxygen.
$(3)$ 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
$(4)$ Hydrogen peroxide is used for the manufacture of sodium per borate.

TestHub · Accepted Answer

All these statements are correct as on decomposition hydrogen peroxide and compounds, such as $K C l O_{3}, P b (N O_{3})_{2}$ and $N a N O_{3}$ when heated liberate dioxygen
$2 H_{2} O_{2} \overset{Δ}{\to} 2 H_{2} O + O_{2}$
$2 K C l O_{3} \overset{Δ}{\to} 2 K C l + 3 O_{2}$
$2 N a N O_{3} \overset{Δ}{\to} 2 N a N O_{2} + O_{2}$
Both 3 and 4 statements are correct as 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide and hydrogen peroxide is used for the manufacture of sodium per borate.

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