Question

Following compounds are given

(i) CH₃CH₂OH

(ii) CH₃COCH₃

(iii) CH3 - C₂H₄OH

(iv) CH₃OH

Which of the above compound(s), on being warmed with iodine solution and NaOH, will give iodoform?

(a) (i), (iii) and (iv) 

(b) only (ii)

(c) (i), (ii) and (iii) 

(d) (i) and (ii)

Answer 1

Correct option (c) (i), (ii) and (iii)

Explanation :

Methyl alcohol does not respond to the iodoform test. The iodoform test is exhibited by ethyl alcohol, acetaldehyde, acetone, methyl ketones, those alcohols which possess CH₃CH(OH)- group, acetophenone, α-hydroxypropionic acid, keto acid, 2-aminoalkanes, etc.