Iodoform test is given by:

1 - propanol

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Methanol

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2 - butanol

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1 - butanol

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Solution

The correct option is B 2 - butanol
Iodoform test is given by alcohols which
$O H$
$|$
have $C H_{3} - C H$ group. On reaction with
$l_{2}$ and alkali they give yellow ppt. of $C H l_{3}$
$O H$
$|$
$C H_{3} - C H_{2} - C H - C H_{3}$
$2 -$ butanol
$O H$
$|$
Only $2 -$ butanol has $C H_{3} - C H$ group
among given choices, so it gives iodoform
test.

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