Directions : Each of these questions contain two statements, Assert...

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Directions : Each of these questions contain two statements, Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
(a) Assertion is correct, reason is correct; reason is a correct explanation for assertion.
(b) Assertion is correct, reason is correct; reason is not a correct explanation for assertion
(c) Assertion is correct, reason is incorrect
(d) Assertion is incorrect, reason is correct.
Assertion : Lithium carbonate is not so stable to heat.
Reason : Lithium being very small in size polarizes large
\( \mathrm{CO}_{3}^{2-} \) ion leading to the formation of more stable \( \mathrm{Li}_{2} \mathrm{O} \)
and \( \mathrm{CO}_{2} \)
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