Question

Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine?

• A. $C{H}_{3}C{H}_{2}CH\left(OH\right)C{H}_3$
• B. $C{H}_{3}OH$
• C. $C{H}_{3}C{H}_{2}OH$
• D. $C{H}_{3}CH\left(OH\right)C{H}_3$

Answer 1

Answer: (B)

$C{H}_{3}OH$

Methanol $(C{H}_3-OH)$

- The iodoform test is a test for the presence of carboxyl compound with the structure.

(Refer to image 01)

and alcohols with the structure (Refer ti image 02)

- While in case of methanol, here is no beta carbon in it.

Alcohols those are having beta carbon in its they can give a methyl ketone after oxidation.