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AIIMS2019ChemistryPractical Chemistry

Which of the following salts is coloured salt before heating?

Options

  1. ACuCO ₃
  2. BPbCO ₃
  3. CZnCO ₃
  4. DNa ₂ CO ₃

Correct answer

A. CuCO ₃

Step-by-step solution

CuCO ₃ is green before heating while, PbCO ₃, SrCO ₃ and Na ₂ CO ₃ are white.

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