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Q.

What is the correct order when the substances O2, H2O,OF2 and H2O2 are arranged in order of increasing oxidation number for oxygen? 

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a

H2O,H2O2,O2,OF2

b

H2O2,O2,H2O,OF2

c

O2,H2O,OF2,H2O2

d

OF2,O2,H2O2,H2O

answer is B.

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Detailed Solution

Oxidation number for oxygen in O2 is zero.

Oxidation number for oxygen in H2O is -2.

Oxidation number for oxygen in  OF2 is 2.

Oxidation number for oxygen in H2O2 is -1.

So correct order of increasing oxidation number for oxygen,

H2O,H2O2,O2,OF2.

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