Post Utme Ims U 2019 Chemistry Question 28

Practice objective / multiple choice question 28 from the 2019 Post Utme Ims U Chemistry examination.

Post Utme Ims U 2019 Chemistry Objective / Multiple Choice
Question 28 POST_UTME_IMS_U • 2019 • CHEMISTRY • objective

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

Answer Options

A. 50 mg
B. 25 mg
C. 12.5 mg
Correct Answer D. 6.25 mg
Correct Answer
D
Correct Option:
6.25 mg

About This Question

This is Post Utme Ims U 2019 Chemistry Question 28. It is one of the objective questions from the 2019 Post Utme Ims U Chemistry examination.

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support