From each of the following pairs select the compound that will react faster with
sodium iodide in acetone.
I. 2-chloropropane II. 2-bromopropane
III. l-bromobutane IV. 2-bromobutane
Text Solution
Verified by ExpertsD
Both II and I, i.e. 2-bromopropane and 2 -bromobutane will react faster with sodium iodide in
acetone.
is polar aprotic solvent it favours 
reaction mechanism.
The reaction works the best with methyl and primary halides because bulky alkyl groups block the backside attack of the nucleophile and better the leaving group more will be the rate of 
reaction.
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