To an aqueous solution containing ions such as Al^ 3+ , Zn^ 2+ , Ca^ 2+ , Fe^ 3+ , Ni^ 2+ , Ba^ 2+ and Cu^ 2+...

Question

To an aqueous solution containing ions such as Al^ 3+ , Zn^ 2+ , Ca^ 2+ , Fe^ 3+ , Ni^ 2+ , Ba^ 2+ and Cu^ 2+ were added conc. HCl, followed by H_2S. The total number of cations precipitated during this reaction is/are

Accepted Answer

(B)

JEE Main 2021 Chemistry question

Solution