H(2)S gas when passed through a solution...

`H_(2)S` gas when passed through a solution of cations containing `HCl` precipitates the cations of second group in qualitative analysis but not those belonging to the fourth group. It is because

A

presence of HCI decreases the sulphide ion concentration

B

Presence of HCI increases the sulphide ion concentration

C

Solubility of group II sulphides is more than that of group IV sulphides

D

Sulphides of group IV cations are unstable in HCI

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The correct Answer is:

A

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