Home › Maharashtra SSC (Class 10) › Chemistry › Carbon Compounds › How many covalent bonds join the two nitrogen at…
How 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_
Related questions
Which of the following natural polymers has glucose as its monomer?Which monomer is repeatedly joined to form the polymer polyethylene?A macromolecule formed by the regular repetition of a small unit is called a:The reaction of an ester with sodium hydroxide, used to prepare soap from fats, is called:The reaction between a carboxylic acid and an alcohol that produces an ester is called:When ethanoic acid reacts with sodium carbonate, which gas is produced as effervescence?Glacial acetic acid gets its name because pure ethanoic acid does what at around 17 degreeWhen ethanol is heated at 170 degrees C with excess concentrated sulphuric acid, the produ