Among the following compounds, the one(s) that gives (give) effervescence with aqueous $N a H C O_{3}$ solution is (are)
$\begin{matrix} {(C H_{3} C O)}_{2} O & C H_{3} C O O H & P h O H & C H_{3} C O C H O I & I I & I I I & I V \end{matrix}$

I and II

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

I and III

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Only II

No worries! We‘ve got your back. Try BYJU‘S free classes today!

I and IV

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is D I and II
Only carboxylic acids and their derivatives like anhydride are capable to give effervescence with aqueous $N a H C O_{3}$ solution, because they are more acidic as compared to $H_{2} C O_{3}$ (carbonic acid).
$C H_{3} C O O H + N a H C O_{3} ⟶ C H_{3} C O O N a + H_{2} O + C O_{2}$
${(C H_{3} C O)}_{2} O + 2 N a H C O_{3} ⟶ 2 C H_{3} C O O N a + H_{2} O + C O_{2}$

Suggest Corrections

Similar questions

II. In the following reaction sequence, the compound J is an intermediate.

$J (C_{9} H_{8} O_{2})$ gives effervescence on treatment with $N a H C O_{3}$ and a positive Bayer’s test.

The compound I is

C_{2} H_{4} O_{2}

N a H C O_{3}

N a H C O_{3}

{C H}_{3} C O C l (I)

{C H}_{3} C O C H_{3} (I I)

{C H}_{3} C O O {C H}_{3} (I I I)

{C H}_{3} C O O C O {C H}_{3} (I V)

(C O_{2})

N a H C O_{3}

N a H {C O}_{3}

Join BYJU'S Learning Program