Give the I.U.P.A.C. names of the following compounds :

Give the I.U.P.A.C. names of the following compounds :

(i) 2-Bromo-4-methylpentane-3-one
(ii) 4-Methyl-2-nitropentane-3-one
(iii) 2-Ethoxy-4-methoxypentane-3-one
(iv) 2-Methoxy, 4-methylhexane-3-one