Q.
Which of the following compound give yellow precipitate with I2 and NaOH?
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a
CH3CH2OH
b
CCl3CHO
c
CH3CH2CH2OH
d
C3H7CHO
answer is A.
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Detailed Solution
Ethyl alcohol gives positive iodoform test (i.e. yellow ppt. with I2 and NaOH)CH3CH2OH+4I2+6NaOH→CHI3yellow ppt.+5NaI+CH3COONa+3H2O
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