ICSE Class 10 Aldehydes, Ketones and Carboxylic Acids — Mock Test

Free online mock test for Aldehydes, Ketones and Carboxylic Acids (ICSE Class 10 Chemistry) — 84 competency-based questions with instant marking. Try the samples below, then take the full test free.

Sample questions

1. 1.On losing water, an aldol or ketol gives an aldol condensation product, which is a/an:
   • A.alpha,beta-unsaturated carbonyl compound
   • B.Saturated ether
   • C.Geminal diol
   • D.Carboxylic acid
2. 2.![carbonyl_orbital_diagram.png]() The figure shows the orbital picture of the carbonyl group. The carbon atom is labelled sp2 in each panel. What is the hybridisation state of the carbonyl carbon as indicated in the figure?
   • A.sp2 hybridised
   • B.sp3 hybridised
   • C.sp hybridised
   • D.unhybridised
3. 3.The acidity of the alpha-hydrogen atoms in aldehydes and ketones is due to:
   • A.The electron-withdrawing carbonyl group and resonance stabilisation of the conjugate base (enolate)
   • B.Hydrogen bonding with the solvent
   • C.The aromatic character of the molecule
   • D.The high electronegativity of the alpha-carbon
4. 4.From NCERT Exercise 8.7, which one of the following undergoes the Cannizzaro reaction?
   • A.Benzaldehyde
   • B.2-Methylpentanal
   • C.Cyclohexanone
   • D.Phenylacetaldehyde
5. 5.According to the NCERT chapter summary, carboxylic acids undergo alpha-halogenation with chlorine and bromine in the presence of red phosphorus. This reaction is known as:
   • A.Hell-Volhard-Zelinsky reaction
   • B.Cannizzaro reaction
   • C.Friedel-Crafts acylation
   • D.Kolbe electrolysis