S Block Elements Question 143
Question: A solid compound ‘X’ on heating gives $ CO_2 $ gas and a residue. The residue mixed with water forms ‘Y’. On passing an excess of $ CO_2 $ through ‘Y’ water, a clear solution ‘Z’, is obtained. On boil. ‘Z’, compound ‘X’ is reformed. The compound ‘X’ is
Options:
A) $ Ca{{(HCO_3)}_2} $
B) $ CaCO_3 $
C) $ Na_2CO_3 $
D) $ K_2CO_3 $
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Answer:
Correct Answer: B
Solution:
[b] The given properties coincide with $ CaCO_3 $
BETA
