JEE Main 20178 Apr, Morning shiftChemistryMediumPrinciples Related to Practical Chemistry54× since 2004
A solution containing a group-IV cation gives a precipitate on passing H₂S. 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 :