`C_(6)H_(10)overset((1)CH_(3)MgBr)underset((2) H_(2)O) to underset(("Major"))(Q) overset("Conc. HCl")tounderset("(Major)")(S)`
`underset("(Major)")(Q) overset(20% H_(3) PO_(4))underset(360 K)tounderset("(Major)")(R) overset((1)H_(2)//Ni)underset((2) Br_(2)//hv)to underset("(Major)")(T)`
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