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Chemical Bonding — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryChemical Bonding1 Mark
MCQ
Methane molecule regarded as a non-polar covalent compound because :
  • A
    Methane has four carbon-hydrogen single ionic bonds
  • ✓
    Methane has four carbon-hydrogen single covalent bonds
  • C
    Shared pair lies between the atoms at an unequal distance from both carbon and hydrogen atom
  • D
    None of the above
✓

Answer

Correct option: B.
Methane has four carbon-hydrogen single covalent bonds
(b) Methane has four carbon-hydrogen single covalent bonds
Explanation : In methane $\left( CH _4\right)$, there are four carbon-hydrogen $( C - H )$ single covalent bonds. In a covalent bond, electrons are shared between atoms, and in methane, the electrons in these covalent bonds are shared equally between carbon and hydrogen atoms. As a result, there are no significant differences in electronegativity between carbon and hydrogen, and the molecule is non-polar, meaning it does not have a positive or negative end.

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