MDCAT Chemistry Past Paper 2023#Aldehydes and Ketones#Carbonyl Compounds71Choose the best answerWhich of the following is formed when formaldehyde is treated with an oxidizing mixture (H₂SO₄ + K₂Cr₂O₇)? (MDCAT 2023)AMethanolBMethanoic acidCAcetoneDAcetaldehyde Like 0 Discuss 0Share
Aldehydes and Ketones2,4-DNPH Test72Choose the best answerWhich reagent gives an orange or yellow precipitate with both aldehydes and ketones?ATollens' reagentBFehling's solutionC2,4-Dinitrophenylhydrazine reagentDSchiff's reagent Like 0 Discuss 0Share
Aldehydes and KetonesReactivity Toward Nucleophilic Addition73Choose the best answerNucleophilic addition is most favoured in:ACH₃CH₂CH₂COCH₃B(CH₃)₂COCCH₃CH₂CHODCH₃CHO Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Aldehydes and Ketones#Carbonyl Compounds74Choose the best answerWhich aldehyde is more reactive towards nucleophilic addition? (KMU MDCAT 2024)AAcetaldehydeBButyraldehydeCFormaldehydeDPropionaldehyde Like 0 Discuss 0Share
SZABMU MDCAT 2025 Chemistry#Aldehydes and Ketones#Fehling's Test75Choose the best answerWhich one show positive test with Fehling solution: (SZABMU MDCAT 2025)AacetophenoneBmetaformaldehydeCacetaldehydeDbenzaldehyde Like 0 Discuss 0Share