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In a methane molecule, how many hydrogen atoms are joined to one carbon atom by single covalent bonds?

Answer and explanation

Correct answer: Four

The governing concept is covalent bonding and valency. Methane has the molecular formula CH₄. Carbon has valency four, meaning it needs four shared electron pairs to complete its outer shell. One carbon atom therefore forms four single covalent bonds, one with each of four hydrogen atoms. Hence option D is correct. A formula such as CH₃ would not represent the neutral methane molecule, so one, two or three are incorrect.

Related tags

ScienceClass 10Carbon CompoundsMethaneCovalent BondingCarbon ValencyCarbon And Its CompoundsClass 10 Mcq

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