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Mercurous chloride black on adding NH(4)...

Mercurous chloride black on adding `NH_(4)OH` to it. Explain.

A

`Hg(NH_(2))Cl`

B

`Hg_(2)Cl_(2).NH_(4)OH`

C

Hg and `HgNH_(2)Cl`

D

`HgCl_(2).NH_(4)OH`

Text Solution

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The correct Answer is:
3
`underset("mercurous chloride")(Hg_(2)Cl_(2)+2NH_(4)OH)rarr underset("black")overset(Hg+Hg(NH_(2))Cl)(rarr)+NH_(4)Cl+2H_(2)O`
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