MCQ Collection
opra MCQs
Practice opra questions with answers and explanations.
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Correct Answer: D. Reducing particle size can increase dissolution rate by increasing surface area.
Explanation:
Reducing particle size can increase dissolution rate by increasing surface area.
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Correct Answer: C. 10.0
Explanation:
For a weak acid, [A−]/[HA]=10^(pH−pKa).
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Correct Answer: A. Bactericidal activity kills susceptible bacteria, whereas bacteriostatic activity inhibits growth.
Explanation:
Bactericidal activity kills susceptible bacteria, whereas bacteriostatic activity inhibits growth.
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Correct Answer: D. Phase I reactions commonly introduce or expose functional groups through oxidation, reduction or hydrolysis.
Explanation:
Phase I reactions commonly introduce or expose functional groups through oxidation, reduction or hydrolysis.
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Correct Answer: B. 49.9
Explanation:
Use fraction remaining=e^(−kt).
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Correct Answer: D. Bactericidal activity kills susceptible bacteria, whereas bacteriostatic activity inhibits growth.
Explanation:
Bactericidal activity kills susceptible bacteria, whereas bacteriostatic activity inhibits growth.
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Correct Answer: D. Phase I reactions commonly introduce or expose functional groups through oxidation, reduction or hydrolysis.
Explanation:
Phase I reactions commonly introduce or expose functional groups through oxidation, reduction or hydrolysis.
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Correct Answer: C. 73.6
Explanation:
Use fraction remaining=e^(−kt).
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Correct Answer: B. A randomised controlled design reduces allocation bias and supports causal inference when well conducted.
Explanation:
A randomised controlled design reduces allocation bias and supports causal inference when well conducted.
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Correct Answer: B. Positive predictive value depends on disease prevalence as well as test performance.
Explanation:
Positive predictive value depends on disease prevalence as well as test performance.
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Correct Answer: A. A depot formulation can prolong drug release and reduce dosing frequency.
Explanation:
A depot formulation can prolong drug release and reduce dosing frequency.
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Correct Answer: D. 7.63
Explanation:
Concentration=amount/volume.
