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Question

Question: The Nesseler's reagent contains....

The Nesseler's reagent contains.

A

Hg2++Hg_{2}^{+ +}

B

Hg++Hg^{+ +}

C

HgI2−−Hg{I_{2}}^{- -}

D

HgI4−−Hg{I_{4}}^{- -}

Answer

HgI4−−Hg{I_{4}}^{- -}

Explanation

Solution

HgI2+2KI→K2[HgI4]HgI_{2} + 2KI \rightarrow K_{2}\lbrack HgI_{4}\rbrack ⇌2K++[HgI4]−−2K^{+} + \lbrack HgI_{4}\rbrack^{- -}