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A very dilute acidic solution of Cd2+ and Ni2+ gives only yellow ppt. of CdS on passing H2S, this is — Qualitative and Quantitative Analysis Chemistry Question

Question

A very dilute acidic solution of Cd2+ and Ni2+ gives only yellow ppt. of CdS on passing H2S, this is due to :

Answer: B

💡 Solution & Explanation

Basic radicals are classified on the basis of increasing order of K_sp. Cd2+ in II group while Ni2+ in IV group. K_sp of CdS is less than that of NiS.

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