Chemistry NCERT Exemplar Solutions Class 11th Chapter Ten Class 11th The S-block Elements Chemistry The S Block Elements

Which of the carbonates given below is unstable in air and is kept in CO₂ atmosphere to avoid decomposition.

(i) BeCO₃

(ii) MgCO₃

(iii) CaCO₃

(iv) BaCO₃

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Payal Gupta | Contributor-Level 10

8 months ago

This is a multiple choice type question as classified in NCERT Exemplar

Correct option (i)

Due to the smaller size of the cation Be²⁺, and larger size of the anion CO₃^2?, BeCO₃ is unstable in air. Therefore, it is kept in CO₂ atmosphere to avoid decomposition.

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Chemistry NCERT Exemplar Solutions Class 11th Chapter Ten 2025

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