1
kamalendu ghosh
·2009-04-10 05:13:30
http://targetiit.com/iit_jee_forum/posts/basicity_4405.html
1
kamalendu ghosh
·2009-04-10 05:25:44
options de na..re...amar adbhut ans achche,,
1
AARTHI
·2009-04-10 05:48:41
can we bring tautomerism factor here????? sum1 tell me if im rite