Name the following compounds according to IUPAC system of nomoenclature :
`(I ) CH_3 CH(CH_5 ) CH_2 CH_2 CHO`
(ii)` CH_3 CH_2 COCH (C_2H_5 ) )CH_2CH_2Cl`
`(iii ) CH_3 CH=CHCO`
`(iv ) CH_3 COCH_2 COCH _3`
` (v) CH_2 CH(CH_3)CH_2C(CH_3)_2 COCH_3`
`(vi ) (CH_3 )_2 C CH_2 COOH `
` (vii ) OHC C_6 H_4 CHO -p`

Explanation

(I ) 4-methypentanal (ii ) 6-chloro-4-ethylhexan -3-one
(iii ) but -2- enal (iv ) Pentane -2,4 diole
(v ) `3,3,5 ` - Trimethylhexane -2 one ( vi ) 3- bromo-4-phenylpentation acid
(vii ) Benzene -1,4-dicarbaldhyde