Post Utme Unn 2017 Chemistry Question 6

Practice objective / multiple choice question 6 from the 2017 Post Utme Unn Chemistry examination.

Post Utme Unn 2017 Chemistry Objective / Multiple Choice
Question 6 POST_UTME_UNN • 2017 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5 days. If 100 mg of the subs\tance is present initially, how much of the subs\tance will remain after 15 days?

Answer Options

Correct Answer A. 12.5 mg
B. 25 mg
C. 50 mg
D. 100 mg
Correct Answer
A
Correct Option:
12.5 mg

About This Question

This is Post Utme Unn 2017 Chemistry Question 6. It is one of the objective questions from the 2017 Post Utme Unn Chemistry examination.

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