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10.16     Arrange the compounds of each set in order of reactivity towards SN2 displacement:

         (i)     2-Bromo-2-methylbutane, 1-Bromopentane, 2-Bromopentane

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(i)  Here the deciding factor of the rate of reaction will be a steric hindrance tertiary is more hindered than secondary and secondary is more sterically hindered than primary.

                    

It is clear from the above that the order of hindrance is:-   

1-Bromopentane < 2-bromopentane < 2-Bromo-2-methylbutane

So the order of rate of reaction will be:-        

 2-Bromo-2-methylbutane < 2-Bromopentane < 1-Bromopentane

Posted by

Devendra Khairwa

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