CBSE Class 12 Chemistry Aldehydes, Ketones and Carboxylic Acids Quiz 1

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CBSE › Class 12 › Chemistry › Aldehydes, Ketones and Carboxylic Acids

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1. benzaldehyde

A 3 and 4 only B 2 and 5 only C 1, 2 and 3 only D 2, 3 and 5 only

2. Aldehydes other than formaldehyde react with Grignard’s reagent to give addition products which on hydrolysis give

A tertiary alcohols B secondary alcohols C primary alcohols D carboxylic acids

3. Which of the following will not give aldol condensation?

A Phenyl acetaldehyde B 2-Methylpentanal C Benzaldehyde D 1-Phenylpropanone

4. The product of hydrolysis of ozonide of 1-butene are

A ethanol only B ethanal and methanal C propanal and methanal D methanal only

5. α-Hydroxypropanoic acid can be preapred from ethanal by following the steps given in the sequence

A Treat with HCN followed by acidic hydrolysis B Treat with NaHSO followed by reaction with NaCO C Treat with HSO D Treat with KCrO

6. Benzoyl Chloride on reduction with H/Pd-BaSO produces

A benzoic acid B benzyl alochol C benzoyl sulphate D benzaldehyde

7. What is the test to differentiate between penta-2-one and pentan-3-one?

A Iodoform test B Benedict’s test C Fehling’s test D Aldol condensation test

8. Which of the following does not undergoCannizzarro’s reaction?

A Benzaldehyde B 2-Methylpropanal C p-Methoxybenzaldehyde D 2, 2-Dimethylpropanal

9. Aldehydes that do not undergo aldol condensation are

10. propanal

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