Among the following , the least thermally stable is

1.	Among the following , the least thermally stable is
Answer» `K_(2)CO_(3)` `Na_(2)CO_(3)` `BaCO_(3)` `Li_(2)CO_(3)` Solution :Among `Li^(+) , Na^(+) , K^(+)` and `Ba^(2+) , Li^(+)` has the smallest size and hence the highest POLARISING power . As a result , `Li_(2)CO_(3)` has the least ionic CHARACTER and hence has the least stability .

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