Post Utme Ksu 2018 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2018 Post Utme Ksu Chemistry examination.

Post Utme Ksu 2018 Chemistry Objective / Multiple Choice
Question 23 POST_UTME_KSU • 2018 • CHEMISTRY • objective

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

Answer Options

Correct Answer A. 12.5 g
B. 25.0 g
C. 37.5 g
D. 50.0 g
Correct Answer
A
Correct Option:
12.5 g

About This Question

This is Post Utme Ksu 2018 Chemistry Question 23. It is one of the objective questions from the 2018 Post Utme Ksu Chemistry examination.

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