Question

`A overset(Mg)underset((C_(2)H_(5))_(2)O)rarr B overset(C_(2)H_(5)OH)rarr(CH_(3))_(2)CH-CH_(3)`
In the above sequence the starting compound A is
A. 2-Bromobutane
B. 2-Bromo-2-methylpropane
C. 1-Bromobutane
D. 1-Bromo-2-methylpropene

Answer 1

Correct Answer - B
`underset("2-Bromo-2-methylpropane")(H_(3)C-overset(CH_(3))overset("| ")underset(Br)underset("| ")("C ")-CH_(3) overset(Mg)underset((C_(2)H_(5))_(2)O)rarr H_(3)C-overset(CH_(3))overset("| ")underset(MgBr)underset("| ")("C ")-CH_(3))overset(C_(2)H_(5)OH)underset(-Mg(OC_(2)H_(5))Br)rarr H_(3)C-overset(CH_(3))overset("| ")underset("H ")underset("| ")("C ")-CH_(3)`