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Which is the weakest nucleophile? CH3O- CH3SH H2 CH3CH2O- OH- Which of the following alkyl bromide...

Which is the weakest nucleophile?

CH3O-

CH3SH

H2

CH3CH2O-

OH-

Which of the following alkyl bromide isomers is most difficult to undergo an SN2 reaction?

2-bromo-1-pentene

5-bromo-1-pentene

4-bromo-1-pentene

All will react at the same rate.

3-bromo-1-pentene

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