Q.

Among the following, the least thermally stable is?

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a

Li2CO3

b

BaCO3

c

K2CO3

d

Na2CO3

answer is D.

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Detailed Solution

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Lithium carbonate is thermally the least stable

Moving down a group enhances a carbonate's thermal stability. Lithium carbonate,Li2CO3, is therefore the least thermally stable.

Li2CO3ΔLi2O+CO2

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