Post Utme Aaua 2021 Chemistry Question 23

Practice objective / multiple choice question 23 from the 2021 Post Utme Aaua Chemistry examination.

Post Utme Aaua 2021 Chemistry Objective / Multiple Choice
Question 23 POST_UTME_AAUA • 2021 • CHEMISTRY • objective

A metal (X) reacts with oxygen to form a basic oxide. The reaction is: 4X + 3O2 → 2X2O3. What is the oxidation state of X?

Answer Options

A. +2
Correct Answer B. +3
C. +4
D. +5
Correct Answer
B
Correct Option:
+3

About This Question

This is Post Utme Aaua 2021 Chemistry Question 23. It is one of the objective questions from the 2021 Post Utme Aaua Chemistry examination.

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