Among the following compounds, the one (s) that gives (gives) effervescence with aqueous `NaHCO_(3)` solution is (are) : (I) `(CH_(3)CO)_(2)O` , (II) `CH_(3)COOH` (III) `PhOH` , (IV) `CH_(3)COCHO`A. I and IIB. I and IIIC. Only IIID. I and IV

Among the following compounds, the one (s) that gives (gives) efferves

1.	Among the following compounds, the one (s) that gives (gives) effervescence with aqueous `NaHCO_(3)` solution is (are) : (I) `(CH_(3)CO)_(2)O` , (II) `CH_(3)COOH` (III) `PhOH` , (IV) `CH_(3)COCHO`A. I and IIB. I and IIIC. Only IIID. I and IV
Answer» Correct Answer - A Only carboxylic acids and their derivatives like anhybride are capable to give effervescence with aqueous `NaCHO_(3)` solution, because they are more acidic as compared to `H_(2)CO_(3)` (carbonic acid) I. `(CH_(3)CO)_(2)O to 2CH_(2)COONa +H_(2)O+CO_(2)` (II). `CH_(3)COOH+NaHCO_(3) to CH_(3)COONa+H_(2)O+ CO_(2)`

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Among the following compounds, the one (s) that gives (gives) effervescence with aqueous `NaHCO_(3)` solution is (are) : (I) `(CH_(3)CO)_(2)O` , (II) `CH_(3)COOH` (III) `PhOH` , (IV) `CH_(3)COCHO`A. I and IIB. I and IIIC. Only IIID. I and IV

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