1.

From the following reaction which substance act as reducing agent ? HCHO+AgOtoHCOOH+2Ag

Answer»

HCHO
Ag
HCOOH
`Ag_(2)O`

Solution :`underset(+0)underset(darr)(HCHO)+underset(+1)underset(darr)(AgO)tounderset(+2)underset(darr)(HCOOH)+underset(0)underset(darr)(2Ag)`
Here, `Ag_(2)O` reduce into Ag while in HCHO it will be oxidised. So HCHO is REDUCING agent.


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