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  • Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?Option: 1 <img alt="\mathrm{CrO}_{3} / \text { ac

Oxidation of toluene to benzaldehyde can be easily carried out with which of the following reagents?

Option: 1

\mathrm{CrO}_{3} / \text { acetic acid, } \mathrm{H}_{3} \mathrm{O}^{+}


Option: 2

\mathrm{CrO}_{3} \text { /acetic anhydride, } \mathrm{H}_{3} \mathrm{O}^{+}


Option: 3

\mathrm{KMnO}_{4} / \mathrm{HCl}, \mathrm{H}_{3} \mathrm{O}^{+}


Option: 4

\mathrm{CO} / \mathrm{HCl} \text {, anhydrous } \mathrm{AlCl}_{3}


Answers (1)

best_answer

Benzaldehyde can be obtained from Toluene upon reaction with \mathrm{CrO}_{3} in the presence of acetic anhydride followed by acidic hydrolysis.

 

Hence, Option (2) is correct.

Posted by

Ritika Harsh

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