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Q.

A metal nitrate reacts with KI  solution to give yellow precipitate which on addition of excess of more concentrated solution (6M) of KI dissolves forming a solution, The cation of metal nitrate is:

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a

Hg22+

b

Ag+

c

Pb2+

d

Cu2+

answer is C.

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Detailed Solution

PbNO32⟶KI PbI2(Yellow) →Excess KI (>6M)PbI42−(Soluble)                                       Dilution        ↵

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