Post Utme Rsu 2018 Chemistry Question 14

Practice objective / multiple choice question 14 from the 2018 Post Utme Rsu Chemistry examination.

Post Utme Rsu 2018 Chemistry Objective / Multiple Choice
Question 14 POST_UTME_RSU • 2018 • CHEMISTRY • objective

A 2.50 g sample of a non-metallic oxide is heated in a crucible until it decomposes completely. The mass of the residue is 1.25 g. Calculate the percentage of oxygen in the original sample.

Answer Options

A. 20.0%
B. 30.0%
Correct Answer C. 40.0%
D. 50.0%
Correct Answer
C
Correct Option:
40.0%

About This Question

This is Post Utme Rsu 2018 Chemistry Question 14. It is one of the objective questions from the 2018 Post Utme Rsu Chemistry examination.

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