Write the IUPAC names of the ketons and aldehydes wherever possible . Give also common names
(I ) `CH_3CO (CH_2)_4 CH_3`
`(ii ) CH_2CH_2 CHBr CH_2 CH(CH_3) CHO`
`(iii ) CH_3 (CH_2)_5 CHO`
` (iv )ph-CH=CH-CHO`

` (vi) ph COPh`

Explanation

`{:(CH_3-overset(O)overset(||)C-CH_2CH_2CH_2CH_2CH_2),("Heptan-2-one (Methyln-pentyl ketone)"):}`
`(ii ){:(overset(6)CH_3overset(5)CH_2overset(Br)overset(4|)CHoverset(3)CH_2 underset(CH_3)underset(|)overset(2)CH-overset(1)CHO),("4-Bromo-2-methylhexanal ("gamma"Bromo"alpha "methylcaproaldehyde "):}`
`(iii ) CH_3 -- CH_2 underset("Heptanol ")(CH_2CH_2CH_2)CH_2CHO`
`(iv ) {:(C_6 H_5CH=CH-CHO ),("3-Phenylprop-2-enal ("beta"-phenyl acrolein )"):}`
(v )
`(vi ) {:( " "phCOPh),("diphenyl methanone (Benzophenone )"):}`