Question

Propene `overset(HBr)rarr A overset((i)"Mg/ether")underset((ii)H_(2)O //"Boil")rarr B`
In the above sequence of reactions B is
A. Propane
B. Butane
C. Propene
D. Ethane

Answer 1

Correct Answer - A
`underset("Propene")(H_(3)C-CH=CH_(2))overset(HBr)rarr H_(3)C-underset((A))underset(Br)underset(|)(C )H-CH_(3)`
`overset((i)"Mg/ether")rarrCH_(3)-underset(MgBr)underset(|)(C )H-CH_(3)overset((ii)H_(2)O //"Boil")underset(-Mg(OH)Br)rarr underset("Propane")(C_(3)H_(8))`