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QAIPMT-2010-Ch-1944: NEET 2010 Chemistry - Class 11 AIPMT-2010-Ch-1944 Solution: The compound A on heating gives a colourless gas and a residue…

The compound A on heating gives a colourless gas and a residue that is dissolved in water to obtain B. Excess of

CO_2

is bubbled through aqueous solution of B C is formed which is recovered in the solid form. Solid C on gentle heating gives back A. The compound is

CaCO_3

Na_2CO_3

K_2CO_3

CaSO_4 \cdot 2H_2O

A https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/2c1f2c10ef48e288663f996d69aa65127cde3e3d2633b37293032bf3d3531ef2.webp
B https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/d776375a33339425d7cd9026d0d6437f7657d2b2ac898c52efa9544d521c009c.webp
C https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/ffe9ab7266af20ca17040945d73451c2d4a0b601b86621318ce442efac58011e.webp
D https://pub-09328fb7cd7b4b94aaf562e6bb66ceaf.r2.dev/photos/c4dc8da3d700d0d0b3c8cd1c567e206527ee243e26b5e15237198247eee55755.webp

Step-by-Step Verified Solution

The conformation (d) is most stable because of intermolecular H-bonding.