Which of the following compound gives iodoform test?

Question

Which of the following compound gives iodoform test? (A)  CH3CN  (B)  CH3OH  (C)  CH3COCH3  (D)  C6H5OH

Tardigrade Admin · Accepted Answer

Compounds containing (CH3 - overset underset||OC- ) group give the iodoform test. CH 3- overset underset||OC - CH 3+3 I 2+ Na OH longrightarrow underset text Iodoform (yellow ppt) CHI 3+ HCOONa + H 2 O Hence only acetone gives the iodoform test.

Q. Which of the following compound gives iodoform test?

$C H_{3} CN$

$C H_{3} O H$

$C H_{3} COC H_{3}$

$C_{6} H_{5} O H$

Compounds containing
$⎝ ⎛ C H_{3} - C ∣∣ O - ⎠ ⎞$
group give the iodoform test.
$C H_{3} - C ∣∣ O - C H_{3} + 3 I_{2} + N a O H ⟶ Iodoform (yellow ppt) C H I_{3} + H COON a + H_{2} O$
Hence only acetone gives the iodoform test.

Q. Which of the following compound gives iodoform test?

CH3​CN

CH3​OH

CH3​COCH3​

C6​H5​OH

Compounds containing ⎝⎛​CH3​−C∣∣O​−⎠⎞​ group give the iodoform test. CH3​−C∣∣O​−CH3​+3I2​+NaOH⟶ Iodoform (yellow ppt) CHI3​+HCOONa+H2​O​ Hence only acetone gives the iodoform test.

$C H_{3} CN$

$C H_{3} O H$

$C H_{3} COC H_{3}$

$C_{6} H_{5} O H$

Compounds containing
$⎝ ⎛ C H_{3} - C ∣∣ O - ⎠ ⎞$
group give the iodoform test.
$C H_{3} - C ∣∣ O - C H_{3} + 3 I_{2} + N a O H ⟶ Iodoform (yellow ppt) C H I_{3} + H COON a + H_{2} O$
Hence only acetone gives the iodoform test.