Which of the following can be used to differe | vedclass

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(A) Pentan$-2-$one is a methyl ketone $(CH_3-CO-CH_2-CH_2-CH_3)$,which gives a positive iodoform test with $I_2$ and $NaOH$ to form a yellow precipita

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Iodoform test

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(A) Pentan$-2-$one is a methyl ketone $(CH_3-CO-CH_2-CH_2-CH_3)$,which gives a positive iodoform test with $I_2$ and $NaOH$ to form a yellow precipitate of iodoform $(CHI_3)$.Pentan$-3-$one $(CH_3-CH_2-CO-CH_2-CH_3)$ is not a methyl ketone and does not give the iodoform test.Both ketones react with $NaHSO_3$ to form bisulfite addition products,so it cannot differentiate them.Tollen's reagent is used to distinguish aldehydes from ketones,not between two ketones.Therefore,the iodoform test is the correct method to differentiate these two compounds.

Which of the following can be used to differentiate pentan$-2-$one and pentan$-3-$one?

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