Post Utme Ui 2017 Chemistry Question 22

Practice objective / multiple choice question 22 from the 2017 Post Utme Ui Chemistry examination.

Post Utme Ui 2017 Chemistry Objective / Multiple Choice
Question 22 POST_UTME_UI • 2017 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5.0 days. If 100.0 mg of the subs\tance is initially present, how much will remain after 20.0 days?

Answer Options

A. 20.0 mg
Correct Answer B. 40.0 mg
C. 60.0 mg
D. 80.0 mg
Correct Answer
B
Correct Option:
40.0 mg

About This Question

This is Post Utme Ui 2017 Chemistry Question 22. It is one of the objective questions from the 2017 Post Utme Ui Chemistry examination.

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