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Explain lead to e1 or e2 reactions

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Question- For each of the following reaction conditions decide if they would preferentially lead to E1 or E2 reactions.

t-butylbromide in water

aminocyclopentane with aqueous HBr

3-pentanol with concentrated phosphoric acid and sulfuric acid (aq)

iodopentane with sodium mercaptan (NaSH)

bromocyclohexane with sodium cyanide (NaCN) in acetone

I am stuck in between this question please help me out

Reference no: EM13694367

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