alleryHow many covalent bonds join the two nitrogen atoms in a nitrogen (N2) molecule?
AFour
BOne
CTwo
DThree
Answer & Solution
Correct answer: D. Three
1. Each nitrogen atom needs three more electrons to complete its octet.
2. The two atoms share three pairs of electrons with each other.
3. Three shared pairs mean three covalent bonds, that is a triple bond.
4. Rule out C: two bonds (a double bond) describes O2, not N2.
_Source: Balbharati (Maharashtra Board) Class 10 Science & Technology, Ch 9 "Carbon Compounds", p.121_
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