Obtain the IUPAC name of the following compound systematically. CH_(3)CHO (ii) CH_(3)CH_(2)COCH_(3) (iii) ClCH_(2)-CH_(2)-CH_(2)-CH_(3)

Obtain the IUPAC name of the following compound systematically. CH_(3

1.	Obtain the IUPAC name of the following compound systematically. CH_(3)CHO (ii) CH_(3)CH_(2)COCH_(3) (iii) ClCH_(2)-CH_(2)-CH_(2)-CH_(3)
Answer» Solution :(i) `CH_(3)CHO` Step 1 : The parent chain consists of 2 carbon ATOMS. The root word is ..Eth... Step 2 : All are single bonds between carbon atom of the chain. So the primary suffix is ..ane... Step 3 : Since the compound contains the - CHO GROUP, it is a aldehyde. The secondary suffix is ..al... `therefore` The NAME of the compound is Eth + ane + al = Ethanal (ii) `CH_(3)CH_(2)COCH_(3)` Step 1 : The parent chain consists of 4 carbon atoms. The root word is ..But... Step 2 : All are single bonds between carbon atom of the chain. So the primary suffix is ..ane... Step 3 : Since the compound contains the - CO - group, it is a ketone group. The secondary suffix is ..one... `therefore` The name of the compound is But + ane + one = Butanone (iii) `ClCH_(2)-CH_(2)-CH_(2)-CH_(3)` Step 1 : The parentchain consists of 4 carbon atoms. The root word is But... Step 2 : All the single bonds between carbon atom of the chain. So the suffix is ..ane... Step 3 : Since the compound contains the - Cl substituent. The prefix is Chloro. Step 4 : The locant number of - Cl is 1 and thus prefix is 1 -Chloro. `therefore` The name of the compound is 1 -Chloro + But - ane = 1 -Chlorobutane.