FSC Physics MCQs Part 2 Physics Part 1 HSSC Pre Medical Pre Engineering text Book Questions first year and second-year Physics mcqs

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Which of the following reaction is not shown by ketones?
A. reaction with HCN B. reaction with NaHSO3
C. reaction with 2 4 dinitrophenyl hydrazine D. reaction with Fehling solution
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[explanation]D[/explanation]
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[question]
Which of the following substances does not give iodoform test?
A. acetaldehyde B. ethyl alcohol
C. methyl alcohol D. acetone
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[explanation]C[/explanation]
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[question]
Acetone reacts with HCN to form a cyanohydrin. It is an example of
A. electronphilic addition B. electrophilic substitution
C. nucleophilic addition D. nucleophilic substitution
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[explanation]C[/explanation]
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[question]
Which of the following reactions may be assoclated with aldehyde and ketone?
A. nucleophile addition B. polymerization
C. oxidation D. all of the above
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[explanation]D[/explanation]
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[question]
Which of the following compounds will react with Tollens reagent?
A. CH3-CHO B. CH3-CH-CH3
C. CH3-COOH D. CH3-CO-CH2-CH3
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[explanation]A[/explanation]
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