Giev the IUPAC names of :
(i) `{:(CH_(3)-CH-C-CH-CH_(3)),(" |"" ||"" |"),(" "Br" "O" "CH_(3)):}`
(ii) `{:(CH_(3)-CH-C-CH-CH_(3)),(" |"" ||"" |"),(" "NO_(2)" "O" "CH_(3)):}`
(iii) `(CH_(3))_(3)C-CH_(2)-CH_(2)-Cl`
(iv) `{:(CH_(3)-CH-CH_(2)-CH_(3)),(" |"),(" "Br):}`

Explanation

(i) 2-Bromo-4-methylpentan-3-one
(ii) 2-Methyl-4-nitropentan-2-one
(iii) 4-Chloro-2, 2-dimethylbutane
(iv) 2-Bromoburane.