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Solids in Liquids

Which is/are ...

Question

Which is/are insoluble in aqueous ${N H}_{3}$ solution?

A g C l

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A g B r

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A g I

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{A g}_{2} S

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Solution

The correct options are
C ${A g}_{2} S$
D $A g I$
AgCl and AgBr are soluble in ammonia whereas AgI and $A g_{2} S$ are insoluble in ammonia.
$A g C l + 2 N H_{4} O H \to [A g (N H_{3})_{2}] C l s o l u b l e c o m p l e x + 2 H_{2} O$
$A g B r + 2 N H_{4} O H \to [A g (N H_{3})_{2}] B r s o l u b l e c o m p l e x + 2 H_{2} O$

Suggest Corrections

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[I^{-}] = [B r^{-}] = [C l^{-}] = 0.2 M

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