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In which of the following reactions, the...

In which of the following reactions, the underlined substance has been reduced ?

A

`ul(Cu)+CuO rarr CO_(2)+Cu`

B

`ul(CuO)+2HCl rarr CuCl_(2)+H_(2)O`

C

`ul(4H)_(ul(2))ul(O)+3Frarr 4H_(2)+Fe_(3)O_(4)`

D

`ul(C)+4HNO_(3)rarr CO_(2)+2H_(2)O+4NO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`overset(+1)H_(2)Orarr overset(0)H_(2)`
Oxidation number of H decreases from +1 to 0. Hence , `H_(2)O` is reduced to `H_(2)`.
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NCERT FINGERTIPS-REDOX REACTIONS-Oxidation Number
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