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

Question

Which of the following will not form a yellow precipitate on heating with an alkaline solution of iodine? (A) CH3CH(OH)CH3 (B) CH3 CH2 CH(OH)CH3 (C) CH3 OH (D) CH3 CH2 OH

Tardigrade Admin · Accepted Answer

Formation of a yellow precipitate on heating a compound with an alkaline solution of iodine is known as iodoform reaction. Methyl alcohol does not respond to this test. Iodoform test is exhibited by ethyl alcohol, acetaldehyde, acetone, methyl ketone and those alcohols which possess CH 3 CH ( OH ) group.

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

$C H_{3} C H (O H) C H_{3}$

$C H_{3} C H_{2} C H (O H) C H_{3}$

$C H_{3} O H$

$C H_{3} C H_{2} O H$

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

CH3​CH(OH)CH3​

CH3​CH2​CH(OH)CH3​

CH3​OH

CH3​CH2​OH

$C H_{3} C H (O H) C H_{3}$

$C H_{3} C H_{2} C H (O H) C H_{3}$

$C H_{3} O H$

$C H_{3} C H_{2} O H$