Chemistry WAEC

What is the total number of shared pairs of electrons in the compound above?

A. 5
B. 8
C. 10
D. 12

Correct Answer: Option D

D. 12

Explanation

Each double bond has two pairs of valence electrons shared to form a covalent bonding. Also, every C-H bond, has 2 valence electrons involved. Drawing the Lewis structure, you see that the above compound has 12 valence electrons shared.

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