Question

which of the following compound give yellow precipitate with iodine and alkalie?

A)Propane-2-ol
B)acetophenone
C)Methyl acetate
D)Acetamide

Answer 1

Answer:

B is the correct one

Explanation:

Haloform reaction,

CH3COR is oxidized by NaOI to form iodoform and RCO2 Na

wherein

C6 H5 COCH3  +NaOH+I2 →C6 H5CO2 Na+CHI3

​Methyl acetate and Acetamide will not give a yellow precipitate.  

Acetophenone will give a yellow precipitate.