substitution / elimination reactions

[aelek]

I'm supposed to determine products for the given set of reactions (A,B, C)

 

CH2=CH-CH3 + HBr --> A

A + H2S --> B

B + CH3I --> C

 

A is obviously 2-bromopropane, but what I'm unsure about is whether it will react with H2S in both substitution and elimination? If yes, would the resulting alkene (elimination product) react with CH3-I to form alkyl halide, whereas thiol (substitution product) would react to form sulfide?

Edited June 25, 2014 by aelek