Assertion: Etard reaction helps to stop the oxidation of toluene at the aldehyde stage. Reason: Chromyl chloride oxidises methyl group to a chromium complex, which on hydrolysis gives corresponding benzaldehyde.

Question

Assertion: Etard reaction helps to stop the oxidation of toluene at the aldehyde stage. Reason: Chromyl chloride oxidises methyl group to a chromium complex, which on hydrolysis gives corresponding benzaldehyde. (A) If both assertion and reason are true and reason is the correct explanation of assertion (B) If both assertion and reason are true but reason is not the correct explanation of assertion (C) If assertion is true but reason is false (D) If both assertion and reason are false

Tardigrade Admin · Accepted Answer

When toluene is treated with chromyl chloride in C S 2, brown chromium complex is formed, which on hydrolysis gives benzaldehyde. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/9e6919679df2ac1ffdd752f49fcfbaf9-.png" />

Q. Assertion: Etard reaction helps to stop the oxidation of toluene at the aldehyde stage.
Reason : Chromyl chloride oxidises methyl group to a chromium complex, which on hydrolysis gives corresponding benzaldehyde.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion

If assertion is true but reason is false

If both assertion and reason are false

When toluene is treated with chromyl chloride in $CS 2$ , brown chromium complex is formed, which on hydrolysis gives benzaldehyde.

Q. Assertion: Etard reaction helps to stop the oxidation of toluene at the aldehyde stage. Reason : Chromyl chloride oxidises methyl group to a chromium complex, which on hydrolysis gives corresponding benzaldehyde.