Using a chemical test or tests how could you distinguish bet

Using a chemical test or tests, how could you distinguish between 3-pentanone and 4-penten-1-ol?

Please explain your answer carefully.

Thank you.

Solution

Tests for ketones(2-pentanone)

1. 2,4-DNP(Di-Nitro phenyl hydrazine test):ketone will react to give yellow coloured crystals on addition of 2,4 -DNP solution but alcohol will not show any observable change.

2. m-dinitrobenzene test: our ketone will react with the reagent in presence of NaOH to give a violet solution.

Tests for alcohol(4-pentenol-1-ol)

1. Cerric Ammonium Nitrate Test : our alcohol will react with CAN to give pink or red colour solution. However ketone won\'t react at all.