Post Utme Afe Babalola University 2025 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2025 Post Utme Afe Babalola University Chemistry examination.

Post Utme Afe Babalola University 2025 Chemistry Objective / Multiple Choice
Question 23 POST_UTME_AFE_BABALOLA_UNIVERSITY • 2025 • CHEMISTRY • objective

The half-life of a radioactive subs\tance is 10 years. If a sample of this subs\tance has an initial activity of 100 Bq, what is its activity after 20 years?

Answer Options

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

About This Question

This is Post Utme Afe Babalola University 2025 Chemistry Question 23. It is one of the objective questions from the 2025 Post Utme Afe Babalola University Chemistry examination.

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