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Chemical Bonding — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryChemical Bonding1 Mark
MCQ
A compound having one lone pair of electrons :
  • A
    Water
  • B
    Methane
  • ✓
    Ammonia
  • D
    Hydrogen sulphide
✓

Answer

Correct option: C.
Ammonia
(c) Ammonia
Explanation : In ammonia $\left( NH _3\right)$, there is a central nitrogen atom bonded to three hydrogen atoms $( H )$. Nitrogen has one lone pair of electrons in addition to its three covalent bonds. This lone pair of electrons is not involved in bonding and is localised on the nitrogen atom, making ammonia a compound with one lone pair of electrons.

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