Post Utme Eksu 2018 Chemistry Question 8

Practice objective / multiple choice question 8 from the 2018 Post Utme Eksu Chemistry examination.

Post Utme Eksu 2018 Chemistry Objective / Multiple Choice
Question 8 POST_UTME_EKSU • 2018 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5.00 days. If 100.0 mg of the subs\tance is initially present, how much will remain after 20.0 days?

Answer Options

A. 12.5 mg
Correct Answer B. 25.0 mg
C. 50.0 mg
D. 100.0 mg
Correct Answer
B
Correct Option:
25.0 mg

About This Question

This is Post Utme Eksu 2018 Chemistry Question 8. It is one of the objective questions from the 2018 Post Utme Eksu Chemistry examination.

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