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Q. Which of the following on oxidation with $CrO_{3}$ would give a product that would give iodoform test?

J & K CETJ & K CET 2002

Solution:

$CH _{3} CHO$ and all other ketones containing $COCH _{3}$ group give iodoform test. Butanol-2 on oxidation with $CrO _{3}$ gives ethylmethyl ketone, which gives iodoform test positive.
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