Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETChemistryAldehydes and Ketones

Which of the following is NOT a common role of the carbonyl group in electrophilic substitution reactions?

Options

  1. ADeactivating the ring
  2. BMeta-directing the incoming electrophile
  3. CEnhancing the reactivity of the ring
  4. DDecreasing the yield of ortho-substituted products

Correct answer

C. Enhancing the reactivity of the ring

Step-by-step solution

The carbonyl group in electrophilic substitution reactions does not enhance the reactivity of the ring; instead, it decreases the reactivity by deactivating the ring.

Practice Aldehydes and Ketones on Quantrex Academy →

More from Aldehydes and Ketones

Base catalyzed aldol condensation occurs with 2026Aromatic aldehydes are less reactive than the aliphatic aldehydes in nucleophilic addition reaction this is due to 2026Identify a final product obtained when Pent-3-enenitrile is treated with AlH (i -Bu )₂ followed by acid hydrolysis. 2026When a mixture of an aldehyde and Fehling solution is boiled in hot water, a red precipitate is formed. Here the obtained red precipitate is of - 2026Which of the following reagents gives the same reduction product with propionaldehyde and acetone ? 2026Which of the following statements regarding the haloform test is NOT correct? 2026Which is the best reagent for the following conversion? CH ₃ -CH=CH-CH ₂ -CHO CH ₃ -CH=CH-CH ₂ -CH ₂ -OH 2026Aldehydes containing at least one -hydrogen atom undergo a reaction in presence of dilute aq. NaOH to form -hydroxyl aldehyde. Identify the reaction. 2026 Full Aldehydes and Ketones list All NEET PYQs