Chemistry · S and p Block Elements
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Which of the following carbonates of alkali metals is not stable towards heat and is decomposed on heating to its oxide along with liberation of CO2?
- A
Li2CO3
- B
Mg2CO3
- C
K2CO3
- D
Na2CO3
A is correct as Lithium carbonate is not stable to heat. Hence, it decomposes at a lower temperature.
B is incorrect as Mg2CO3 is stable upon heating.
C is incorrect as K2CO3 is stable upon heating.
D is incorrect as Na2CO3 is stable upon heating
Lithium carbonate is not stable to heat. Hence, it decomposes at a lower temperature.
Mg2CO3 is stable upon heating
K2CO3 is stable upon heating.
Na2CO3 is stable upon heating
Tagged under Chemistry · S and p Block Elements · 2010