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NEET2014Chemistrys Block ElementsActual

Among the following the least thermally stable is

Options

  1. AK ₂ CO ₃
  2. BNa ₂ CO ₃
  3. CBaCO ₃
  4. DLi ₂ CO ₃

Correct answer

D. Li ₂ CO ₃

Step-by-step solution

Thermal stability of carbonates increases on moving down a group. Thus, lithium carbonate, Li ₂ CO ₃ is least thermally stable. Li ₂ CO ₃ Li ₂ O + CO ₂

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