Question

The following species generates a highly stable radical on exposure to 100 W bulb light. Which one of the following represents this stable radical ?

• A. $M{e}_2\stackrel{\bullet }{C}\left(CN\right)$
• B. $\stackrel{\bullet }{\underset{\bullet }{C}}{H}_3$
• C. $\stackrel{\bullet }{C}N$
• D. $M{e}_{2}C\left(CN\right)N=\stackrel{\bullet }{C}$

Answer 1

Answer: (A)

$M{e}_2\stackrel{\bullet }{C}\left(CN\right)$

On photolytic cleavage, the diazo compounds produce free radicals, followed by loss of nitrogen.
Option A is correct.