Consider the following two reaction schemes for the same starting material.

http://www.webassign.net/ksorgchem2/221-22-001.jpg
(a) Draw the skeletal structure of the major organic product A.

(b) Draw the skeletal structure of the major organic product B.

under basic condition (CH3ONa is a base) like in a) epoxides goes SN2 type of reaction
and under acidic condition (H2SO4 is acid) like in b) epoxides goes SN1 type of reaction

a)here are your answers...
http://postimage.org/image/yjm47q1sz/

b)here are your answers...
http://postimage.org/image/3topwtt6j/

see this link--
http://clem.mscd.edu/~wiederm/oc2chp/oc2…

feel free to ask any questions ...

Do your own work or you won't learn anything