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Assertion (A): The carbonate of lithium decomposes easily on heating to form lithium oxide and \( \mathrm{CO}_{2} \).
\( \mathrm{P} \)
Reason (R) : Lithium being very small in size polarises large carbonate
W ion leading to the formation of more stable \( \mathrm{Li}_{2} \mathrm{O} \) and \( \mathrm{CO}_{2} \).
(i) Both \( \mathrm{A} \) and \( \mathrm{R} \) are correct and \( \mathrm{R} \) is the correct explanation of \( \mathrm{A} \).
(ii) Both \( \mathrm{A} \) and \( \mathrm{R} \) are correct but \( \mathrm{R} \) is not the correct explanation of \( \mathrm{A} \).
(iii) Both \( \mathrm{A} \) and \( \mathrm{R} \) are not correct
(iv) \( \mathrm{A} \) is not correct but \( \mathrm{R} \) is correct.
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