Question
Identify the reagent used for replacement of - N _2^+ Cl ^- from benzene diazonium chloride by iodine.
MHT CET
Chemistry
Haloalkanes and Haloarenes
2026
MHT CET 2026 (16 April Shift 2)
MHT CET Chemistry Question (2026) — Solution
Options
- A. HI
- B. KOI
- C. KI
- D. PI _3
Answer
C. KI
Step-by-step solution
Benzene diazonium chloride reacts with aqueous potassium iodide (KI) upon warming to form iodobenzene. The reaction is given by: C _6 H _5 N _2^+ Cl ^- + KI C _6 H _5 I + N _2 + KCl Therefore, the reagent used for the replacement of the diazonium group by iodine is KI. Answer: KI
Related: Chemistry — Haloalkanes and Haloarenes · All PYQ Banks