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_(2)Br overset(alc. KOH)rarr CH_(3)CH=CH_(2)+HBr is an exmple of the

CH_(3)underset(CH_(3))underset(|)CHCH=CH_(2)overset(HBr)rarrA A (predominantly) is

CH_(3)-overset(CH_(2)CH_(3))overset(|)(CH)CH=CHCH_(3)overset(H_(3)O^(+))rarr Major product of the reaction

CH_(3)-overset(CH_(2)CH_(3))overset(|)(CH)CH=CHCH_(3)overset(H_(3)O^(+))rarr Major product of the reaction

CH_(3)-overset(CH_(2)CH_(3))overset(|)(CH)CH=CHCH_(3)overset(H_(3)O^(+))rarr find the product of the reaction .

Write the structure of the major product and IUPAC name in each of the following reactions : (i) CH_(3)CH_(2)CH_(2)Cl+NaI underset("Heat")overset("Acetone")to (ii) CH_(3)CH_(2)Cl + SbF_(3) overset("Heat")rarr (iii) CH_(3)CH_(2)CH_(2)OH +SOCI_(2) rarr (iv) CH_(3)CH_(2)CH=CH_(2)+HBr overset("Peroxide")rarr (v) CH_(3)CH_(2)underset(CH_(3))underset(|)C=CH_(2)+HBr overset("No Peroxide")rarr (vi) CH_(3)CH_(2)CH_(2)Br+Hg_(2)F_(2) rarr (vii) CH_(3)CH_(2)C-= CH+HCl ("1-equiv") rarr (viii) CH_(3)CH=CH_(2)+Cl_(2)overset(773-873k)rarr

Write the structure of the major product and IUPAC name in each of the following reactions : (i) CH_(3)CH_(2)CH_(2)Cl+NaI underset("Heat")overset("Acetone")to (ii) CH_(3)CH_(2)Cl + SbF_(3) overset("Heat")rarr (iii) CH_(3)CH_(2)CH_(2)OH +SOCl_(2) rarr (iv) CH_(3)CH_(2)CH=CH_(2)+HBr overset("Peroxide")rarr (v) CH_(3)CH_(2)underset(CH_(3))underset(|)C=CH_(2)+HBr overset("No Peroxide")rarr (vi) CH_(3)CH_(2)CH_(2)Br+Hg_(2)F_(2) rarr (vii) CH_(3)CH_(2)C-= CH+HCl ("1-equiv") rarr (viii) CH_(3)CH=CH_(2)+Cl_(2)overset(773-873k)rarr