When calomel reacts with NH4OH solution, the compound formed is:
A
HgO.NH2(Hg)Cl
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B
Hg2Cl2NH3
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C
Hg(NH3)2Cl2
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D
HgCl2NH3
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Solution
The correct option is CHgO.NH2(Hg)Cl When calomel (Hg2Cl2) reacts with NH4OH solution, the compound formed is [HgO.Hg(NH2)Cl]. It is black in colour. Hg2Cl2+2NH4OH→[HgO.Hg(NH2)Cl]↓+NH4Cl+2H2O