Question

Correct order of rate of reaction with $PhMgBr$ is:

• A. $Ph-\stackrel{\underset{||}{O}}{C}-Cl>Ph-\stackrel{\underset{||}{O}}{C}-Me>Ph-\stackrel{\underset{||}{O}}{C}-OMe$
• B. $Ph-\stackrel{\underset{||}{O}}{C}-Me>Ph-\stackrel{\underset{||}{O}}{C}-Cl>Ph-\stackrel{\underset{||}{O}}{C}-OMe$
• C. $Ph-\stackrel{\underset{||}{O}}{C}-OMe>Ph-\stackrel{\underset{||}{O}}{C}-Cl>Ph-\stackrel{\underset{||}{O}}{C}-Me$
• D. $Ph-\stackrel{\underset{||}{O}}{C}-Cl>Ph-\stackrel{\underset{||}{O}}{C}-OMe>Ph-\stackrel{\underset{||}{O}}{C}-Me$

Answer 1

Answer: (A)

Correct answer is (a) $Ph-\stackrel{\underset{||}{O}}{C}-Cl>Ph-\stackrel{\underset{||}{O}}{C}-Me>Ph-\stackrel{\underset{||}{O}}{C}-OMe$