Post Utme Ims U 2020 Chemistry Question 18

Practice objective / multiple choice question 18 from the 2020 Post Utme Ims U Chemistry examination.

Post Utme Ims U 2020 Chemistry Objective / Multiple Choice
Question 18 POST_UTME_IMS_U • 2020 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5 years. If the initial amount of the subs\tance is 100 g, calculate the amount of the subs\tance remaining after 20 years.

Answer Options

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

About This Question

This is Post Utme Ims U 2020 Chemistry Question 18. It is one of the objective questions from the 2020 Post Utme Ims U Chemistry examination.

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