JEE Main Chemistry question
How many of the following alcohols can be oxidised to ketones using Jones reagent? (i) (ii) CH_3-CH(OH)-CH_2-CH_3 (iii) HO-CH_2-CH_2-CH_2-CH_2-OH (iv) (v) Cyclohexanol (vi) Benzyl alcohol ()
Answer: 2
Solution
Jones reagent (acidic ) oxidises secondary alcohols to ketones; only (ii) (a secondary alcohol) and (v) (cyclohexanol, also secondary) fit this requirement. The others are primary
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