ABC26OR0005 · General Organic Chemistry
Subject: Organic Chemistry · Chapter: General Organic Chemistry · Topic: Carbocation Stability · Exam: CSIR-NET JUNE 2011 · Marks: 2 · Difficulty: Medium
The relative rates of solvolysis of iodides A-C are 
(a)C $>$ A $>$ B
(b)$\mathrm{C}>\mathrm{B}>\mathrm{A}$
(c)B $>$ C $>$ A
(d)B $>$ A $>$ C
Answer
Answer (as printed): A
Explanation
NGP: Neighboring group participation: It is defined as the interaction of a reaction center with a lone pair of electrons in an atom or the electrons present in a sigma bond or pi bond contained within the parent molecule but not conjugated with the reaction center. NGP increases the rate of a reaction.
Explanation as extracted from the printed page; notation may be imperfect.