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