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JEE Advanced2006ChemistryGeneral Principles and Processes of Isolation of MetalsActual

Match the extraction processes listed in column I with metals listed in column II.

Options

  1. A(A) P,S, (B) R, (C) P,Q, (D) P,S
  2. B(A) Q,S, (B) R, (C) S, (D) S
  3. C(A) P,R, (B) P, R, (C) Q, (D) R
  4. D(A) P,R, (B) P, (C) Q, (D) S

Correct answer

D. (A) P,R, (B) P, (C) Q, (D) S

Step-by-step solution

Column I Column II (A) Self reduction [ array c P - Lead R - Copper array ] aligned & i.e., A P and R & In lead metal & array c 2 PbS +3 O ₂ 2 PbO +2 SO ₂ 2 PbO + PbS 3 ~Pb + SO ₂ array . aligned (self reduction) In copper metal aligned & 2 Cu ₂ ~S +3 O ₂ 2 Cu ₂ O +2 SO ₂ & Cu ₂ ~S +2 Cu ₂ O 6 Cu + SO ₂ aligned (self reduction) (B) Carbon reduction P -lead aligned & i.e., B - P & In lead metal & PbO + C Pb + CO & PbO + CO Pb + CO ₂ aligned Carbon reduction process is used for the reduction of oxides of electroposit

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