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99 Percentile Qs Bank for JEE MainChemistryAldehydes and Ketones

Which of the following statements is wrong –

Options

  1. AAll methyl ketones give a positive iodoform test.
  2. BAcetaldehyde is the only aldehyde that gives iodoform test.
  3. CAll secondary alcohols give positive iodoform test.
  4. DAny alcohol that can be oxidised to an acetyl group gives a positive iodoform test.

Correct answer

C. All secondary alcohols give positive iodoform test.

Step-by-step solution

This compound which contain methyl ketonic linkage or which can change to methyl ketonic linkage can give a positive iodoform test. So, all secondary Alcohol can’t be given positive iodoform test therefore option (C) is correct.

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