CUET · CHEMISTRY · PYQ PAPER 2025
Which of the following reagents will not convert Toluene into Benzaldehyde?
- A \(CrO _2 Cl _2\)
- B \(CrO _3\)
- C \(Cl _2 /\) light, \(H _2 O\)
- D \(CO / HCl\) in presence of \(AlCl _3\)
Answer & Solution
Correct Answer
(D) \(CO / HCl\) in presence of \(AlCl _3\)
Step-by-step Solution
Detailed explanation
\(CO / HCl\) in presence of \(AlCl_3\) is the Gattermann-Koch reaction, which formylates an aromatic ring directly, typically producing p-methylbenzaldehyde from toluene, not benzaldehyde.
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