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Isolation of Elements question

2008 · Shift 2 · Q22
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Isolation of Elements question

2008 · Shift 2 · Q22

JEE AdvancedChemistryIsolation of ElementsMCQ+4 / −1

Match the conversions in Column I with the type(s) of reaction(s) given in Column II. Indicate your answer by darkening the appropriate bubbles of the 4 ×\times× 4 matrix given in the ORS.

Column I Column II
(A) PbS →\to→ PbO (P) roasting
(B) CaCO 3→{}_3\to3​→ CaO (Q) Calcination
(C) ZnS →\to→ Zn (R) carbon reduction
(D) Cu 2{}_22​ S →\to→ Cu (S) self reduction

  1. A
    A →\to→(p); B →\to→(q); C →\to→(p); D →\to→ (s)
  2. B
    A →\to→(q); B →\to→(p); C →\to→(r); D →\to→ (p, s)
  3. C
    A →\to→(p); B →\to→(q); C →\to→(p, r); D →\to→ (p, s)
  4. D
    A →\to→(p); B →\to→(q, s); C →\to→(p, r); D →\to→ (p)
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