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NEET2015Chemistrys Block ElementsActual

On heating which of the following releases C O 2 most easily?

Options

  1. AK 2 C O 3
  2. BN a 2 C O 3
  3. CM g C O 3
  4. DC a C O 3

Correct answer

C. M g C O 3

Step-by-step solution

Thermal stability order K 2 C O 3 > N a 2 C O 3 > C a C O 3 > M g C O 3 Therefore M g C O 3 releases C O 2 most easily. M g C O 3 → Δ M g O + C O 2

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