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Most Important Selected Qs for JEE AdvancedChemistryp Block Elements (Group 15, 16, 17 & 18)

Paragraph: A white metal sulphide (A) gives (B) gas with rotten egg smell and (C) a colourless sulphate, when treated with dil. H ₂ SO ₄ . (B) reacts with K ₂ Cr ₂ O ₇ / H ⁺ to form (D), a white grey element. (D) burns in oxygen to yield (E) , a colourless gas. If (B) is added in (E) , it gives ( D ) and a colourless liquid which turns anhydrous CuSO ₄ blue. (C) gives a precipitate with NaOH which dissolves in excess

Options

  1. ACuSO ₄
  2. BMnSO ₄
  3. CZnSO ₄
  4. DNiSO ₄

Correct answer

C. ZnSO ₄

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