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JEE Advanced2013Chemistryd and f Block ElementsActual

Paragraph: An aqueous solution of a mixture of two inorganic salts, when treated with dilute H C ?, gave a precipitate ( P ) and a filtrate ( Q ) . The precipitate P was found to dissolve in hot water. The filtrate ( Q ) remained unchanged, when treated with H ₂ ~S in a dilute mineral acid medium. However, it gave a precipitate ( R ) with H₂ S in an ammoniacal medium. The precipitate R gave a coloured solution ( S )

Options

  1. AF e 2 SO 4 3
  2. BCuSO 4
  3. CZnSO 4
  4. DNa 2 CrO 4

Correct answer

D. Na 2 CrO 4

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