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NEET2022Chemistrys Block ElementsActual

Which one of the following is not a calcination reaction?

Options

  1. AZnCO ₃ ZnO + CO ₂
  2. BFe ₂ O ₃ x H ₂ O Fe ₂ O ₃+x H ₂ O
  3. CCaCO ₃ MgCO ₃ CaO + MgO +2 CO ₂
  4. DCaCO ₃ 2 HCl CaCl ₂+ H ₂ O + CO ₂

Correct answer

D. CaCO ₃ 2 HCl CaCl ₂+ H ₂ O + CO ₂

Step-by-step solution

Calcination process involves heating of ore in absence of air below melting point. But here reaction taking place is a displacement reaction.

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