P-Block Elements Ques 42
Question: Which alkali metal carbonate decomposes on heating to liberate $ CO_2 $ gas
[Pb. PMT 2000]
Options:
A) $ Li_2CO_3 $
B) $ CaCO_3 $
C) $ Na_2CO_3 $
D) $ Al_2CO_3 $
Show Answer
Answer:
Correct Answer: A
Solution:
Among alkali metal carbonates only $ Li_2CO_3 $ decomposes. $ Li_2CO_3\xrightarrow{\Delta }Li_2O+CO_2\uparrow $
