9
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Covalent Bonding

Question 9 • IA-Chemistry A Survey of Chemistry A

Check all features below that you included in your Lewis structure.

Answer
A
correct number of H, C, and N atoms
B
C as the central atom
C
line (single bond) between C and H
D
three lines (triple bond) between C and N
E
two dots (electrons) associated with the N atom
F
no other lines or dots

Explanation

The Lewis structure is H–C≡N: it contains one H, one C, and one N, with C as the central atom. Hydrogen has a single bond to carbon, and carbon has a triple bond to nitrogen. Nitrogen also has one lone pair (two dots); no additional bonds or lone pairs are needed.

AI-written and checked against the verified answer.

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