Q.

Which of the following carbonates do not give metal oxide on heating?

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a

CuCO3

b

K2CO3

c

Na2CO3

d

MgCO3

answer is B.

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Detailed Solution

Potassium carbonate on heating forms a liquid, but do not decompose. Beyond 12000C it can.
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Which of the following carbonates do not give metal oxide on heating?