Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) In which of the following reactions does hydrogen act as an oxidizing agent? - Sarthaks eConnect
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In which of the following reactions does hydrogen act as an oxidizing agent?

A.

`H_2+Na ->`

B.

`CH_2=CH_2+H_2 ->`

C.

`PbO_2+H_2 ->`

D.

`H_2+F_2 ->`