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JEE Main2017Chemistryd and f Block ElementsActual

A solution containing a period - IV cation gives a precipitate on passing H 2 S . A solution of this precipitate in dil. HCl produces a white precipitate with NaOH solution and bluish-white precipitate with basic potassium ferrocyanide. The cation is

Options

  1. AMn 2 +
  2. BZn 2 +
  3. CNi 2 +
  4. DCO 2 +

Correct answer

B. Zn 2 +

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