Q. Which of the following statements is incorrect?
A) The rate of reaction increases with increase in water concentration in the hydrolysis of tertiary butyl bromide in methanol and water
B) The relative nucleophilicity in protic solvent is
$CN^{-} > I^{-} > \overline{O}H > Br^{-} > {CI}^{-} > F^{-} > H_{2}O$
C) In $S_{N}$2 reactions, the order of reactivity of alkyl halides is in the order
methyl>primary>secondary> tertiary
D) $S_{N}2\$reaction involves carbonium ions
Explanation
(d)
$S_{N}2\$reaction does not involve ion formation, these infact involve formation of transition state
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.