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Preparation of Hydrogen

A white solid...

Question

A white solid is either $N a_{2} O$ or $N a_{2} O_{2}$ . A peace of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.If true enter 1 else 0.

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Solution

Sodium peroxide reacts with water to form hydrogen peroxide and NaOH
$N a_{2} O_{2} + 2 H_{2} O \to H_{2} O_{2} + 2 N a O H$ $H_{2} O_{2}$ bleaches red litmus. Thus, white powder is $N a_{2} O_{2}$ .

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Similar questions

A white solid is either

N a_{2} O

N a_{2} O_{2}

. A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.

The given substance is

N a_{2} O

If the statement is true, enter 1 else enter 0.

Q. A white solid is either

{N a}_{2} O

{N a}_{2} O_{2}

. A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.

The white solid is identified as ____

Q. A white solid is either Na

_{2}

_{2}

_{2}

. A piece of red litmus paper turns white when it is dipped into a freshly made aqueous solution of the white solid.
The molecular mass of the substance is:

Q. Aqueous solution of sodium thiosulphate turns milky white on acidification showing a disproportionation reaction.
If true enter 1, else enter 0.

{B a C l}_{2}

gives white precipitate with an aqueous solution of a salt. The acid radical is either

{S O}_{3}^{2 -}

{S O}_{4}^{2 -}

If true enter 1, else enter 0.

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