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Most Important Selected Qs for JEE AdvancedChemistryGeneral Principles and Processes of Isolation of Metals

Zine and silver can be separated from each other by

Options

  1. ADistillation
  2. BHeating with conc. NaOH
  3. CTreating with dil. HNO ₃
  4. DTreating with conc. H ₂ SO ₄

Correct answer

B. Heating with conc. NaOH

Step-by-step solution

Zinc has low boiling point and can be easily separated from silver by distillation. On heating with conc. NaOH , zinc goes into solution forming Na ₂ ZnO ₂ but silver is unaffected. Both dil. HNO ₃ and conc. H ₂ SO ₄ react with Zn as well as Ag .

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