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Introduction to Oxidation and Reduction

What is the s...

Question

What is the sum of oxidation numbers of oxygen and hydrogen in $O_{2}$ and $H_{2}$ respectively?

0.0

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Solution

The correct option is A 0.0
We know,
The oxidation number of an element in its elementary form or uncombined state is zero.
Here, $O_{2}$ and $H_{2}$ are elementary states of oxygen and hydrogen so there oxydation no. is $0 a n d 0$ in $O_{2}$ and $H_{2}$ respectively.
So, sum of oxidatoin numbers $= 0 + 0 = 0$ .

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