Arrange in decreasing order of boiling points: Pentanal, Pentanoic acid, 2-Methylbutan-1-ol.

Boiling points: Pentanoic acid (strong H-bonding) > 2-Methylbutan-1-ol (H-bonding) > Pentanal (dipole-dipole).

What is the IUPAC name of the compound \( \ce{CH3CH(CH3)CH2CHO} \)?

The longest chain containing the aldehyde group has 4 carbons, so the base name is butanal. The methyl group is on the second carbon from the aldehyde end. Thus, the name is 3-methylbutanal.

NEET Chemistry: Aldehydes Ketones and Carboxylic Acids — Practice Set 11 (10 MCQs)

Chemistry — Aldehydes Ketones and Carboxylic Acids

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Arrange in decreasing order of reactivity towards \( \ce{HCN} \): \( \ce{(CH3)2CHCHO} \), \( \ce{CH3CH2COCH3} \), \( \ce{CH3CHO} \).

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NEET Chemistry: Aldehydes Ketones and Carboxylic Acids — Practice Set 11

Q1. Arrange in decreasing order of reactivity towards \( \ce{HCN} \): \( \ce{(CH3)2CHCHO} \), \( \ce{CH3CH2COCH3} \), \( \ce{CH3CHO} \).

Q2. Arrange in decreasing order of boiling points: Pentanal, Pentanoic acid, 2-Methylbutan-1-ol.

Q3. What is the IUPAC name of the compound \( \ce{CH3CH(CH3)CH2CHO} \)?

Q4. Which compound is formed by the ozonolysis of 2-methylpropene followed by hydrolysis?

Q5. What is the common name of \( \ce{CH3CH2CH2COOH} \)?

Q6. Which reaction converts acetone to 2-methylpropan-2-ol?

Q7. Arrange in decreasing order of reactivity towards nucleophilic addition: \( \ce{CH3CHO} \), \( \ce{CH3COCH3} \), \( \ce{C6H5COCH3} \).

Q8. Arrange in decreasing order of boiling points: Hexanal, Hexan-1-ol, Pentanoic acid.

Q9. Which aldehyde is produced when 1-pentyne is oxidized with \( \ce{KMnO4} \) under neutral conditions?

Q10. Which test gives a silver mirror with ethanal but not with acetone?