PE practice questions and answers
What is the oxidation state of Carbon in Carbonate (CO3-2)
(A) -2
(B) 4
(C) 1
(D) 2
The Correct Answer
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Explanation
The Principles and Practice of Engineering exam is the examination required for one to become a Professional Engineer (PE) in the United States. It is the second exam required, coming after the Fundamentals of Engineering exam.