[eureka123]

i am not getting same answers as given by book..
help plzz

[Arctic-Nation]

As in your other thread, show us some effort please.

[eureka123]

Q1 no idea abt what is role of CH3 COONa
and Q2 i thought it was oxymercuration-demercuration. => markonikov addn of water..but answer says something diff 

[Arctic-Nation]

For the first reaction, acetate acts as a base. Do you have an idea of the reactivity of 2-bromobutane?

In the second reaction, mercury indeed adds to the double bond to form a mercurinium ion. However, in your reaction mixture, there is no water present, but methanol can react in the same way. Continue from there.

[eureka123]

okk... i get it...in place of OH^- now OCH₃^- will atach

thanx

but my dbt abt 1 q still not solved

[Arctic-Nation]

Well... just tell us what you think might happen. Doesn't matter if it's right or wrong, but you should really try it yourself. As I told you, acetate acts as a base. What do bases commonly do?