Chemistry Class 12 NCERT Solutions: Chapter 12 Aldehydes Ketones and Carboxylic Acids Part 2

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Q: 2. Name the following compounds according to IUPAC system of nomenclature:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii)

Answer:

(i)

(ii)

(iii)

(iv)

(v)

(vi)

(vii) Benzene-1-4-dicarbaldehyde

Q: 3. Draw the structures of the following compounds.

(i) 3-Methylbutanal

(ii) p-Nitropropiophenone

(iii) p-Methylbenzaldehyde

(iv) 4-Methylpent-3-en-2-one

(v) 4-Chloropentan-2-one

(vi) 3-Bromo-4-phenylpentanoic acid

(vii) p, p’-Dihydroxybenzophenone

(viii) Hex-2-en-4-ynoic acid

Answer:

(i)

Q 3 i 3-Methylbutanal

Q 3 I 3-Methylbutanal

(ii)

Q 3 iii p-Nitropropiophenone

Q 3 III P-Nitropropiophenone

(iii)

Q 3 iii p-Methylbenzaldehyde

Q 3 III P-Methylbenzaldehyde

(iv)

Q 3 iv 4-Methylpent-3-en-2-one

Q 3 IV 4-Methylpent-3-en-2-One

(v)

Q 3 v 4-Chloropentan-2-one

Q 3 V 4-Chloropentan-2-One

(vi)

Q 3 vi 3-Bromo-4-Phenylpentanoic acid

Q 3 VI 3-Bromo-4-Phenylpentanoic Acid

(vii)

Q 3 vii p,p'-Dihydroxybenzophenone

Q 3 VII P,P'-Dihydroxybenzophenone

(viii)

Q 3 viii Hex-2-en-4-ynoic acid

Q 3 VIII Hex-2-en-4-Ynoic Acid

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