Q.

IV group cations are not precipitated by dil. HCl+H2S  Because: 

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a

Ksp of the sulphide of IV th group cations are low

b

Ksp of the sulphide of IInd  group cations are high 

c

Ksp of the sulphide of IV th group cations are high 

d

Sulphide of IV the group cations are water soluble 

answer is B.

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Detailed Solution

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Solubility of IV th group sulphide >II group sulphide
So that, it is easy to precipitate 2nd group sulphide.

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