MCQ Collection
nsw-hsc MCQs
Practice nsw-hsc questions with answers and explanations.
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Correct Answer: B. 12.47
Explanation:
P=E/t=12.47 W.
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Correct Answer: B. To estimate what happens without the experimental treatment.
Explanation:
A control provides a comparison baseline.
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Correct Answer: D. Two genetically similar daughter cells with the same chromosome number.
Explanation:
Mitosis supports growth and repair.
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Correct Answer: A. 1 × 10⁻2 mol L⁻¹
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Correct Answer: A. 16.12
Explanation:
P=E/t=16.12 W.
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Correct Answer: D. To estimate what happens without the experimental treatment.
Explanation:
A control provides a comparison baseline.
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Correct Answer: C. 3/4
Explanation:
AA and Aa show the dominant phenotype: 3 of 4 expected offspring.
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Correct Answer: D. 0.06
Explanation:
After 2 half-lives, amount=0.24000000000000002/2^2=0.06.
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Correct Answer: A. It lowers activation energy without being consumed.
Explanation:
Enzymes alter reaction rate by lowering activation energy.
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Correct Answer: C. 19/24
Explanation:
Probability equals favourable outcomes divided by total outcomes.
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Correct Answer: C. 42
Explanation:
Subtract 3 and divide by 5; x=42.
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Correct Answer: A. 10.7
Explanation:
Increase=18/169×100=10.7%.