The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds :

Question

The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds : (A) I > II > III (B) III > II > I (C) II > I > III (D) I > III > II

Tardigrade Admin · Accepted Answer

N.A. R ⇒ â Charge on Sp2 carbon propto (-M/+M) propto (-I/+I)

Q. The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds :

I > II > III

III > II > I

II > I > III

I > III > II

N.A. $R \Rightarrow$ ⊕ Charge on $S p^{2}$
carbon $\propto \frac{- M}{+ M} \propto \frac{- I}{+ I}$

Q. The order of reactivity of phenyl magnesium bromide (PhMgBr) with the following compounds :

I > II > III

III > II > I

II > I > III

I > III > II

N.A. R⇒ ⊕ Charge on Sp2 carbon ∝+M−M​∝+I−I​

N.A. $R \Rightarrow$ ⊕ Charge on $S p^{2}$
carbon $\propto \frac{- M}{+ M} \propto \frac{- I}{+ I}$