Post Utme Summit University 2021 Chemistry Question 28

Practice objective / multiple choice question 28 from the 2021 Post Utme Summit University Chemistry examination.

Post Utme Summit University 2021 Chemistry Objective / Multiple Choice
Question 28 POST_UTME_SUMMIT_UNIVERSITY • 2021 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5.0 days. If 100 mg of the subs\tance is initially present, how much of the subs\tance will remain after 20 days?

Answer Options

Correct Answer A. 12.5 mg
B. 25.0 mg
C. 50.0 mg
D. 100 mg
Correct Answer
A
Correct Option:
12.5 mg

About This Question

This is Post Utme Summit University 2021 Chemistry Question 28. It is one of the objective questions from the 2021 Post Utme Summit University Chemistry examination.

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