Same chapter3 marksDifficulty: Medium
Why does hydrogen chloride gas not conduct electricity, while its aqueous solution does?
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3 marksDifficulty: Medium
Draw the electron dot structure of a molecule of methane and of ammonia, and state the number of lone pairs in each.
Original Khojo Papers practice question — not from a past board paper.
Answer
In methane the carbon atom shares one electron pair with each of four hydrogen atoms and has no lone pair. In ammonia the nitrogen atom shares three pairs with three hydrogen atoms and keeps one lone pair.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
The lone pair on nitrogen is what allows ammonia to form a co-ordinate bond.
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