Practical & Analytical Chemistry · JEE Main previous year questions

2017 1 question

1. Q752017 · 8 Apr 2017 · Shift 1

   A solution containing a group-IV cation gives a precipitate on passing ${\mathrm{H}}_2\mathrm{S}$. A solution of this precipitate in dil.HCl produces a white precipitate with $\mathrm{NaOH}$ solution and bluish-white precipitate with basic potassium ferrocyanide. The cation is :

   1. A.$\mathrm{C}{\mathrm{o}}^{2+}$
   2. B.$\mathrm{N}{\mathrm{i}}^{2+}$
   3. C.$\mathrm{M}{\mathrm{n}}^{2+}$
   4. D.$\mathrm{Z}{\mathrm{n}}^{2+}$
   Show answer

   Answer: D