Which of the following carbonate decompose most easily on heating?

R b_{2} C O_{3}

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K_{2} C O_{3}

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N a_{2} C O_{3}

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M g C O_{3}

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Solution

The correct option is C $M g C O_{3}$
As we move down the group, stability of carbonates increases. Also, alkali metal carbonates are more stable than alkaline earth metal carbonates.

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Similar questions

R b_{2} C O_{3}, C s_{2} C O_{3}, L i_{2} C O_{3}, N a_{2} C O_{3}, K_{2} C O_{3}

L i_{2} C O_{3}, R b_{2} C O_{3}, C s_{2} C O_{3}, N a_{2} C O_{3}, K_{2} C O_{3}

K_{2} C O_{3}

M g C O_{3}

N a_{2} C O_{3}

H_{2} O ?

(1) B e S O_{4} > M g S O_{4} > C a S O_{4} > B a S O_{4}

(2) B e (O H)_{2} > M g (O H)_{2} > C a (O H)_{2} > B a (O H)_{2}

(3) L i O H < N a O H < K O H < R b O H

(4) L i_{2} C O_{3} < N a_{2} C O_{3} < K_{2} C O_{3} < R b_{2} C O_{3}

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