substrate: 
nucleophile: methoxide ion
[Q1] wich mechanism will give major products??? SN2 or E2 ????
[Q2] mostly elimination reactions require high temperature .......so
suppose a question is asked ( where temperature condition isnt given)
and if we arent able to decide whether substitution will occur or
elimination ......are we allowed to discard elimination
reaction since they require high temperatures???
PS: solomons has given ans to my [Q1] as E2 ....but a different source has given SN2 as d ans and discarded E2 by saying dat it requires high temp and the temp conditions werent given in the ques....
11i think its E2..
With 2o halides,due to steric hindrance in the substrate, substitution is more difficult.
23i also think it shud be E2 since the Nucleophile is a strong base ... but waiting for other opinions .....
39Analyse the given conditions.
Base : Unhindered, small in size and strong. Will prefer a bimolecular mechanism, and can directly concoct SN2 or E2.
Substrate : The halide is secondary.
Now the base is strong, thus the scales tip in favour of elimination by E2. Had the base been weak or resonance stabilised, it would have been a better nucleophile for a secondary substrate.
23lolz ..seedha seedha bol na u agree wid it ..... btw ur answers are always satisfying and interesting to read ....
23but my professor told it will be SN2 ...we shud discard E2 since it requires high temp ....... i slightly dont agree wid da prof