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KVPY2015ChemistryPractical Chemistry

When H ₂ ~S gas is passed through a hot acidic aqueous solution containing Al ³⁺ Cu ²⁺, Pb ²⁺ and Ni ²⁺ , a precipitate is formed which consists of

Options

  1. ACuS and Al ₂ ~S ₃
  2. BPbS and NiS
  3. CCuS and NiS
  4. DPbS and CuS

Correct answer

D. PbS and CuS

Step-by-step solution

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