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Q.

Statement-I: The carbonate of lithium decomposes easily on heating to form lithium oxide and CO2.

Statement-II: Lithium being very small in size polarises large carbonate ion leading to the formation of more stable Li2O and CO2 .

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a

Both statement-I and statement-II are correct

b

Both statement-I and statement-II are incorrect

c

Statement-I is incorrect and statement-II is correct

d

Statement-I is correct and statement-II is incorrect

answer is A.

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Detailed Solution

As lithium carbonate is not stable to heat, it decomposes at lower temperature. Small sized Li polarizes large carbonate ion which leads to formation of Li2O and CO2

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