Post Utme Ksu 2021 Chemistry Question 7

Practice objective / multiple choice question 7 from the 2021 Post Utme Ksu Chemistry examination.

Post Utme Ksu 2021 Chemistry Objective / Multiple Choice
Question 7 POST_UTME_KSU • 2021 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 5.3 years. If the initial amount of the subs\tance is 100 g, how much of the subs\tance will remain after 21.4 years?

Answer Options

A. 10 g
Correct Answer B. 20 g
C. 30 g
D. 40 g
Correct Answer
B
Correct Option:
20 g

About This Question

This is Post Utme Ksu 2021 Chemistry Question 7. It is one of the objective questions from the 2021 Post Utme Ksu Chemistry examination.

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