1.

Mercuric chloride is reduced to mercurous chloride by

Answer»

Formic acid
Ammonia
Acetic acid
`C_(6)H_(5)CHO`

Solution :`2Hg Cl_(2) + HCOOH rarr UNDERSET("White PPT")(Hg_(2)Cl_(2)) + 2HCl + CO_(2)`


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