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Q)

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

( A ) $CH_3OH$
( B ) $CH_3CH_2(OH)CH_3$
( C ) $CH_3CH_2OH$
( D ) $CH_3CH_2CH(OH)CH_3$

A compound containing one of the following structural units on heating with $I_2$ and NaOH will give a yellow precipitate of Iodoform $( CHI_3)$. This is called Iodoform test.