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Chapter 11: Q 11-11-41 E-a (page 350)

Which compound in each of the following pairs will react faster in an SN2reaction with?

a) CH3Br or CH3I

Short Answer

Expert verified

CH3I

Step by step solution

01

SN2 reaction

It is a nucleophilic substitution reaction in which old bond breaks and new bond is formed both the process occur simultaneously. Hence, it’s a single step reaction.

The two reacting species are involved in the rate determining steps.

02

Nucleophile 

Nucleophilesare negatively charged ions or the neutral species having the lone pair of electrons which are ready for bonding.

03

Species react faster with OH+

If the species is a better leaving group then it react faster with the nucleophile

I is a better leaving group than Br due to its large size the bond of C-I is weak than C-Br bond so C-I bond get easily break and nucleophilic substitution takes place.

CH3I show fast reaction than CH3Br.

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Most popular questions from this chapter

Question: Predict the product and give the stereochemistry resulting from reaction of each of the following nucleophiles with (R)-2-bromooctane:

(c)CH3S-

The reaction of HBr with (R)-3-methyl-3-hexanol leads to racemic 3-Bromo-3-methyl hexane. Explain.

Predict the product(s) for each elimination reaction below. In each case show the mechanism. What do the mechanisms have in common? Why?

a.

b.

c.

Question: Propose structures for compounds that fit the following descriptions:

(d) An alcohol that reacts rapidly with HCl at 0 °C

Question: Order each of the following sets of compounds with respect to reactivity:

b.
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