Post Utme Uniosun 2025 Chemistry Question 33

Practice objective / multiple choice question 33 from the 2025 Post Utme Uniosun Chemistry examination.

Post Utme Uniosun 2025 Chemistry Objective / Multiple Choice
Question 33 POST_UTME_UNIOSUN • 2025 • CHEMISTRY • objective

The half-life \( t_\( 1/2 \ \)) of a first-order reaction is 10 minutes. If the initial concentration of the reac\tant is 1.0 M, what is the concentration of the reac\tant after 20 minutes?

Answer Options

A. 0.25 M
Correct Answer B. 0.5 M
C. 0.75 M
D. 1.0 M
Correct Answer
B
Correct Option:
0.5 M

About This Question

This is Post Utme Uniosun 2025 Chemistry Question 33. It is one of the objective questions from the 2025 Post Utme Uniosun Chemistry examination.

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