Post Utme Ui 2018 Chemistry Question 16

Practice objective / multiple choice question 16 from the 2018 Post Utme Ui Chemistry examination.

Post Utme Ui 2018 Chemistry Objective / Multiple Choice
Question 16 POST_UTME_UI • 2018 • CHEMISTRY • objective

A mixture of 2.50 g of an unknown metal oxide and 2.50 g of CaO is heated in a crucible until the oxide decomposes completely. The mass of the remaining solid is 4.75 g. What is the empirical formula of the unknown metal oxide?

Answer Options

Correct Answer A. MgO
B. CaO
C. FeO
D. CuO
Correct Answer
A
Correct Option:
MgO

About This Question

This is Post Utme Ui 2018 Chemistry Question 16. It is one of the objective questions from the 2018 Post Utme Ui Chemistry examination.

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