1) which of the following statements regarding nucleophilic substitution reactions of alkyl halides is correct?

a) the nucleophile may be positively charged.

b) if the nucleophile is neutral, the product will be positively charged.

c) if the nucleophile is neutral, the product will be neutral.

d) h2o is a better nucleophile than oh .

e) f is a better nucleophile than br .

2) which of the following statements regarding elimination reactions is incorrect?

a) the rate law for an e2 reactions is: rate = k[substrate][base].

b) the rate of an e1 reaction does not depend on [base].

c) primary alkyl halides do not undergo e1 reactions.

d) a carbocation is an intermediate in the e1 reaction.

e) the e2 reaction is a two-step process.

3) which of the following statements regarding sn1 and sn2 reactions is incorrect?

a) water is a poor leaving group.

b) alkoxides are poor leaving groups.

c) iodide anion and bromide anion are good leaving groups.

d) unstable anions are poor leaving groups.

e) the conjugate bases of strong acids are good leaving groups.