SELECT * FROM question_mgmt as q WHERE id=1699 AND status=1 SELECT id,question_no,question,chapter FROM question_mgmt as q WHERE courseId=3 AND subId=9 AND chapterId=67 and ex_no='2' AND status=1 ORDER BY CAST(question_no AS UNSIGNED)

Question:

Write the IUPAC names of the following ketones and aldehydes. Wherever possible, give also common names.

(i) CH3CO(CH2)4CH3           (ii) CH3CH2CHBrCH2CH(CH3)CHO

(iii) CH3(CH2)5CHO             (iv) Ph-CH=CH-CHO

(v)                (vi) PhCOPh

Answer:

(i) CH3CO(CH2)4CH3

IUPAC name: Heptan-2-one

Common name: Methyl n-propyl ketone

 

(ii) CH3CH2CHBrCH2CH(CH3)CHO

IUPAC name: 4-Bromo-2-methylhaxanal

Common name: (Ã�³-Bromo-α-methyl-caproaldehyde)

 

(iii) CH3(CH2)5CHO

IUPAC name: Heptanal

 

(iv) Ph-CH=CH-CHO

IUPAC name: 3-phenylprop-2-enal

Common name: �²-Pheynolacrolein

 

(v)

IUPAC name: Cyclopentanecarbaldehyde

 

(vi)PhCOPh

IUPAC name: Diphenylmethanone

Common name: Benzophenone


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