Class 10 Quiz Level 3 (Difficult) – Carbon and Its Compounds Leave a Comment / By Symmetric Angles / August 13, 2024 Class 10 Quiz Level 3 (Difficult) – Carbon and Its Compounds Total questions: 10 1. Which type of reaction mechanism involves the homolytic cleavage of a bond to form free radicals? Topic: Reaction MechanismsDeselect Answer Electrophilic addition Nucleophilic substitution Electrophilic substitution Free radical substitution None 2. What is the hybridization of the central carbon atom in allene (C₃H₄)? Topic: HybridizationDeselect Answer sp sp² sp³ sp² and sp None 3. Which type of reaction mechanism involves the addition of a nucleophile to an electrophilic carbon center? Topic: Reaction MechanismsDeselect Answer Electrophilic addition Nucleophilic substitution Electrophilic substitution Nucleophilic addition None 4. Which reagent is commonly used to reduce aldehydes to primary alcohols? Topic: Organic SynthesisDeselect Answer KMnO₄ PCC H₂SO₄ NaBH₄ None 5. Which of the following compounds is not considered aromatic? Topic: Aromatic CompoundsDeselect Answer Benzene Toluene Cyclooctatetraene Naphthalene None 6. Which type of spectroscopy is most useful for determining the functional groups present in an organic molecule? Topic: SpectroscopyDeselect Answer NMR spectroscopy IR spectroscopy UV-Vis spectroscopy Mass spectrometry None 7. Which of the following intermediates is formed during the nitration of benzene? Topic: Reaction IntermediatesDeselect Answer Benzyl carbocation Phenyl radical Nitronium ion Benzyne None 8. Which reagent is used to convert a primary alcohol to an alkyl halide? Topic: Organic SynthesisDeselect Answer KMnO₄ PCC H₂SO₄ PBr₃ None 9. Which reagent is used to selectively oxidize a primary alcohol to an aldehyde without further oxidation to a carboxylic acid? Topic: Organic SynthesisDeselect Answer KMnO₄ PCC H₂SO₄ LiAlH₄ None 10. Which conformation of 2-butene is more stable? Topic: Conformational AnalysisDeselect Answer Cis Trans Eclipsed Staggered None 1 out of 10 Time's up
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