Hydrogen peroxide is now generally prepared to industrial scale by the:

action of

H_{2} S O_{4}

on barium peroxide

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action of

H_{2} S O_{4}

on sodium peroxide

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electrolysis of

50

H_{2} S O_{4}

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burning hydrogen in excess of oxygen

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Solution

The correct option is B action of $H_{2} S O_{4}$ on barium peroxide
Hydrogen peroxide is prepared from barium peroxide by the following methods.
By the action of dilute sulphuric acid. A paste of hydrated barium peroxide ( $B a O_{2} .8 H_{2} O$ ) is prepared in ice – cold water and then added slowly to an ice-cold solution of 20% $H_{2} S O_{4} .$

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H_{2} O_{2}

H_{2} S O_{4}

K C l O_{3}, P b (N O_{3})_{2}

N a N O_{3}

The oxide that gives hydrogen peroxide ( $H_{2} O_{2}$ ) on the treatment with a dilute acid ( $H_{2} S O_{4}$ ) is

O_{2} (g)

K M n O_{4}

K M n O_{4} + H_{2} S O_{4} + H_{2} O_{2} \to K_{2} S O_{4} + M n S O_{4} + O_{2} + H_{2} O

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