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Q.

Among the following choose the compounds in with oxygen exhibits $' - 1'$ oxidation state

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a

H_{2} {SO}_{4}

b

{Na}_{2} S_{2} O_{8}

c

H_{2} S_{2} O_{8}

d

{Na}_{2} O_{2}

answer is D.

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Detailed Solution

In peroxides

O_{2}^{2 -}

, the oxidation number of each oxygen atom is

- 1

.

Since, the oxidation state of Na is $+ 1$ .

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