MCQ Collection
ACT Senior Secondary Certificate Sciences MCQs
Practice ACT Senior Secondary Certificate Sciences questions with answers and explanations.
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Correct Answer: D. 1 × 10⁻2 mol L⁻¹
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Correct Answer: B. 13.41
Explanation:
P=E/t=13.41 W.
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Correct Answer: C. It lowers activation energy without being consumed.
Explanation:
Enzymes alter reaction rate by lowering activation energy.
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Correct Answer: B. Two genetically similar daughter cells with the same chromosome number.
Explanation:
Mitosis supports growth and repair.
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Correct Answer: A. 2.0
Explanation:
I=V/R=2.0 A.
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Correct Answer: B. 130
Explanation:
Mass=nM=5×26=130 g.
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Correct Answer: D. It lowers activation energy without being consumed.
Explanation:
Enzymes alter reaction rate by lowering activation energy.
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Correct Answer: A. Two genetically similar daughter cells with the same chromosome number.
Explanation:
Mitosis supports growth and repair.
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Correct Answer: C. 1 × 10⁻8 mol L⁻¹
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Correct Answer: A. 18.89
Explanation:
P=E/t=18.89 W.
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Correct Answer: D. To estimate what happens without the experimental treatment.
Explanation:
A control provides a comparison baseline.