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NCERT Class XII Chemistry
Chapter - Aldehydes, Ketones and Carboxylic Acids
Questions with Solutions

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Question : 4 of 28
Marks: +1, -0
Write the IUPAC names of the following ketones and aldehydes. Wherever possible, give also common names.
(i) CH3CO(CH2)4CH3CH_3CO(CH_2)_4CH_3
(ii) CH3CH2CHBrCH2CH(CH3)CHOCH_3CH_2CHBrCH_2CH(CH_3)CHO
(iii) CH3(CH2)5CHOCH_3(CH_2)_5CHO
(iv) Ph–CH=CH–CHOPh–CH=CH–CHO
(v)
(vi) PhCOPhPhCOPh
Solution:  
 IUPAC name  Common name
 (i) Heptan-2-one  Methyl-n-pentyl ketone
 (ii) 4-Bromo-2-methyl hexanal  Î³-Bromo-α-methyl caproaldehyde
 (iii) Heptanal  -
  (iv) 3-Phenylprop-2-enal  Î²-Phenylacrolein
 (v) Cyclopentane carbaldehyde  -
 (vi) Diphenylmethanone  Benzophenone
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