The following compounds are given to you:
2-Bromopentane, 2-Bromo-2-methylbutane, 1-Bromopentane
(a) Write the compound which is most reactive towards S_N2 reaction. (b) Write the compound which is optically active.
(c) Write the compound which is most reactive towards $β$ -elimination reaction.

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Detailed Solution

(a) 1-bromopentane will be more reactive as it least crowded for an S_N2 reaction.
(b) 2 -Bromo pentane have the chiral carbon. Therefore, it is optically active.
(c) 2-bromo-2methylbutane is most reactive towards elimination as it forms the most stable alkene.

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