Question

Ethers when dissolved in cold concentrated sulphuric acid forms ______.

विकल्प

• oxonium salts

• alkanoic acids

• alkanols

• alkyl hydrogen sulphate

Answer 1

Ethers when dissolved in cold concentrated sulphuric acid forms oxonium salts.

Explanation:

Oxonium salts are created when ethers and cold concentrated sulfuric acid combine. Due to the lone pairs of electrons on oxygen atoms in ethers, it behaves as a Lewis base and forms protonatedoxonium salt when it reacts with a strong acid.

\[\ce{H3C - \overset{\bullet\bullet}{\underset{Ether}{\underset{\bullet\bullet}{O}}} - CH3 ->[H2SO4]
\begin{bmatrix}\ce{H}\phantom{..}\\
|\phantom{..}\\
\underset{Oxonium salt}{H3C - O+ - CH3}\end{bmatrix}}\]