What gas is evolved when propanoic acid reacts with calcium hydroxide and is heated?

Heating calcium propanoate (\( \ce{(CH3CH2COO)2Ca} \)) forms pentan-3-one (\( \ce{CH3CH2COCH2CH3} \)) and releases \( \ce{CO2} \) as a byproduct.

Arrange in increasing order of acidity: \( \ce{CH3CH2CH2COOH} \), \( \ce{CH3CHClCOOH} \), \( \ce{CH3COOH} \).

Acidity increases with electron-withdrawing groups: \( \ce{CH3CH2CH2COOH} \) (alkyl) < \( \ce{CH3COOH} \) < \( \ce{CH3CHClCOOH} \) (Cl closer to COOH).

NEET Chemistry: Aldehydes Ketones and Carboxylic Acids — Practice Set 12 (10 MCQs)

Chemistry — Aldehydes Ketones and Carboxylic Acids

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What is the IUPAC name of \( \ce{CH3CH(CH3)COCH3} \)?

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NEET Chemistry: Aldehydes Ketones and Carboxylic Acids — Practice Set 12

Q1. What is the IUPAC name of \( \ce{CH3CH(CH3)COCH3} \)?

Q2. What gas is evolved when propanoic acid reacts with calcium hydroxide and is heated?

Q3. Arrange in increasing order of acidity: \( \ce{CH3CH2CH2COOH} \), \( \ce{CH3CHClCOOH} \), \( \ce{CH3COOH} \).

Q4. Which compound gives a positive 2,4-DNP test and forms a hydrocarbon with eight carbons upon Clemmensen reduction?

Q5. Which ketone produces a six-carbon hydrocarbon upon Wolff-Kishner reduction?

Q6. Which compound evolves \( \ce{CO2} \) when its calcium salt is heated with calcium methanoate?

Q7. What is the product when 3-methylbutan-2-one reacts with \( \ce{NaBH4} \)?

Q8. Arrange in increasing order of reactivity towards HCN: Acetone, Acetaldehyde, Di-tert-butyl ketone.

Q9. Arrange in decreasing order of reactivity towards nucleophilic addition: \( \ce{CH3CHO} \), \( \ce{C6H5CHO} \), \( \ce{CH3COCH3} \).

Q10. What is the product when butan-2-one reacts with \( \ce{NaBH4} \)?