JEE Main Chemistry question

Not in JEE Main or NEET syllabus

Which of the following metals has stable carbonates?

(A)Al
(B)Si
(C)Mg
(D)NaCorrect

Answer: (D)

Solution

Carbonates decompose more readily to the oxide when heated because of carbonate-ion polarisation by the metal cation; Group 1 carbonates such as are the most difficult to decompose and become even harder to decompose further down

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Question ID VK-137716