Acetone gives positive test with :

Fehling's solution

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Schiff's solution

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2, 4

- DNP

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all of the above

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Solution

The correct option is D $2, 4$ - DNP
Acetone reacts with $2, 4$ -dinitrophenylhydrazine (DNP) to form $2, 4$ -dintrophenylhydrazone (yellow precipitate). However, it gives negative test with Fehling's solution and Schiff's base (as it is a ketone) .
The reaction is given above:

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\begin{matrix} Column-I & Column-II i. & Benzaldehyde & p. & Positive Iodoform Test ii. & Acetaldehyde & q. & Reduces Fehling’s Solution iii. & Formaldehyde & r. & Positive Tollen’s Test iv. & 3-hydroxybutan-2-one & s. & Positive 2,4-DNP test \end{matrix}

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