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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

0 2 Views | Posted 5 months ago
Asked by Shiksha User

  • 1 Answer

  • P

    Answered by

    Payal Gupta | Contributor-Level 10

    5 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 CO32? , BeCO3 is unstable in air. Therefore, it is kept in CO2 atmosphere to avoid decomposition.

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