Among the following compounds, the one(s) tha | vedclass

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(A) Compounds that are more acidic than carbonic acid $(H_{2}CO_{3})$ react with aqueous $NaHCO_{3}$ to release $CO_{2}$ gas, which causes effervescen

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$I$ and $II$

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(A) Compounds that are more acidic than carbonic acid $(H_{2}CO_{3})$ react with aqueous $NaHCO_{3}$ to release $CO_{2}$ gas, which causes effervescence.$I. (CH_{3}CO)_{2}O$ (Acetic anhydride) reacts with $NaHCO_{3}$ to form acetic acid, which then reacts further to release $CO_{2}$.$II. CH_{3}COOH$ (Acetic acid) is more acidic than $H_{2}CO_{3}$ and readily releases $CO_{2}$.$III. PhOH$ (Phenol) is less acidic than $H_{2}CO_{3}$ and does not give effervescence.$IV. CH_{3}COCHO$ (Methylglyoxal) is not acidic enough to react with $NaHCO_{3}$.Therefore, both $I$ and $II$ give effervescence.

Among the following compounds, the one$(s)$ that give$(s)$ effervescence with aqueous $NaHCO_{3}$ solution is (are):
$I. (CH_{3}CO)_{2}O$
$II. CH_{3}COOH$
$III. PhOH$
$IV. CH_{3}COCHO$

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Among the following compounds, the one$(s)$ that give$(s)$ effervescence with aqueous $NaHCO_{3}$ solution is (are):$I. (CH_{3}CO)_{2}O$$II. CH_{3}COOH$$III. PhOH$$IV. CH_{3}COCHO$