MCQ Collection
Pakistan MCQs
Practice Pakistan questions with answers and explanations.
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Correct Answer: B. Tollens’ reagent
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: B. Ability to absorb visible light and bind to material
Explanation:
Macromolecular properties depend on bonding, structure and functional groups.
The selected option matches the relevant chemical role.
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Correct Answer: C. They have less steric and electron-donating alkyl effect
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: C. Conjugated chromophore
Explanation:
Macromolecular properties depend on bonding, structure and functional groups.
The selected option matches the relevant chemical role.
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Correct Answer: D. Ethanoic acid
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: D. Their active sites complement particular substrates
Explanation:
Macromolecular properties depend on bonding, structure and functional groups.
The selected option matches the relevant chemical role.
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Correct Answer: A. Elimination
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: B. Primary alcohol
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: C. Ketone
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: D. Ethene
Explanation:
Organic reactions are predicted from functional groups, reagents and mechanisms.
The stated product or mechanism follows standard organic chemistry.
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Correct Answer: A. Urinary salts crystallize and aggregate
Explanation:
Concentrated urine can promote mineral crystallization.
Hydration and medical procedures are used according to stone type and size.
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Correct Answer: A. They bind a single specific antigenic epitope
Explanation:
Identical antibody molecules have highly specific binding sites.
They can detect hormones, pathogens or disease markers.
