Give the IUPAC names of
(i) (i) `{:(CH_(3)-CH-" C"-CH-OCH_(2)CH_(3)),(" | || |"),(" "OCH_(3)" O "CH_(3)):}`
(ii) `CH_(3)-CO-underset(C_(2)H_(5))underset("| ")"CH"-CH_(2)-CH_(2)-Cl`

Explanation

(i) 2-ethoxy-4-methoxy-3-pentanone and
(ii) 3-ethyl-5-chloro-2-pentanone.