Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET Medical202625 April 2026Morning ShiftChemistryAldehydes and KetonesActual

Which of the following statements regarding the haloform test is NOT correct?

Options

  1. AEthanol exhibits this test.
  2. BIt is given by acetaldehyde.
  3. CIt is given by compounds containing methyl ketone group.
  4. DIt is given by benzaldehyde.

Correct answer

D. It is given by benzaldehyde.

Step-by-step solution

The haloform test is given by compounds containing a methyl ketone group ( CH₃-CO- ) or compounds that can be oxidized to a methyl ketone group under the reaction conditions, such as alcohols containing the CH₃-CH(OH)- group. Ethanol ( CH₃-CH₂-OH ) is oxidized to acetaldehyde ( CH₃-CHO ) by the halogen and alkali mixture, which then gives a positive haloform test. Acetaldehyde ( CH₃-CHO ) contains the CH₃-CO- group and gives a positive haloform test. Benzaldehyde ( C₆H₅-CHO ) does not contain a CH₃-CO- group and ca

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 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. 2026Which of the following reagents converts acid chloride to aldehyde selectively? 2026 Full Aldehydes and Ketones list All MHT CET Medical PYQs