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Which one of the following pairs gives e...

Which one of the following pairs gives effervescence with aqueous `NaHCO_(3)`
(I) `CH_(3)-overset(O)overset(||)(C)-Cl` (II) `CH_(3)-overset(O)overset(||)(C)-CH_(3)`
(III) `CH_(3)-overset(O)overset(||)(C)-O-CH_(3)` (IV) `CH3 COO CO CH3` : I and II I and IV II and III I and III

A

`CH_(3)COCl`

B

`CH_(3)COOCH_(3)`

C

`(CH_(3)CO)_(2)O`

D

`(CH_(3))_(2)CO`

Text Solution

Verified by Experts

The correct Answer is:
A, C
Ethanoylchloride and ethanoic anhydride undergo hydrolysis readily to form free acid, which liberate `CO_(2)` from `NaHCO_(3)`
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