` CH_(2)= CHCH_(2)CH=CH_(2) overset(NBS)rarr X(` Major `),(X)` is `:`

CH_(2)=CH-CH_(2)-CH-CH_(2)overset(NBS)to[A]. The major product [A] is

{:(" "CH_(3)),(" "|),(CH_(3)-CH-C-CH_(2)-NH_(2)overset(HNO_(2))rarr (X) ("major")),(" "|" "|),(" "CH_(3)" "CH_(3)):} Major product (X) of above reaction is :

CH_(3) - CH_(2) - CH_(2) - CH_(3) overset(Br_(2)//hv)(rarr) Major product in the above reaction is :

CH_(3)-CH=CH-CH_(2)-CO_(2)Hunderset(Delta)rarr (X) (major), Producy (X) is:

Which one of the following reactions would be the best for the formation of 2- bromobutane ? (1) CH_(3)CH-CHCH_(2) overset(HBr)rarr (2) CH_(3)CH_(2)CH=CH_(2) overset(HBr)rarr (3) CH_(3)CH=CHCH_(3)overset(Br_(2))rarr ltbr4gt (4) CH_(3)CH_(2)CH=CH_(2)overset(HBr)underset("Peroxide")rarr

CH_(3)CH_(2)CH=CH_(2) overset(NBs)to X overset(alc. KOH)to Y . The compound Y is

CH_(3)-overset(CH_(3))overset(|)(CH)-CH_(2)-NH_(2)overset(HNO_(2))rarr Major product is