Doubt from Reaction mechanism

Is ans C

Yes but i thought bridgehead posn pe rkn nahi hota

Iam so sry I cannot understand Hindi..could you pls say in English.
My explaination is in second method it involves Sn2.
And the bromine is present in bridged carbon position.

But in first case irrespective of the bridged position Grignard reagent forms.

So ans c)

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Basically method two involves Sn2,but method one involves formation of Grignard reagent which is possible for even bridged halide. If you are not able to get it pls do ask again

I thought sn2 cannot be done on bridgehead posn because in sn2 of all 3 bonds cannot be possible

Yes SN2 as well as SN1 is not possible in bridged halide atom.(That’s why second mechanisim is not suitable)

But formation of Grignard doesn’t involve SN2 /SN1 mechanism. So we need not care whether it is bridged or not but still it forms Grignard reagent.

If anyone find anything wrong in my reasoning pls do correct me.

SN1 cannot be done on bridge head carbon because In Sn1 formation carbocation is RDS
In SN2 can occur because it is one step reaction.

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Sir my doubt is won’t steric hindrance be a factor for affecting SN2 rxn.(In this bridged halide compound)

I think it is ok with Sn2 but I has difficulty
But what is the answer of this I think it should be method 2

Nor Sn1 nor Sn2 can take place in case of bridge head carbon because in case of SN2 also the Transition state is Sp² and bridge head can’t be Sp²

Yeah i gof it. Ur answer is right