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Make the structure of methane by showing...

Make the structure of methane by showing sharing of electrons between carbon and hydrogen atoms. How could you convert methane into chloroform by substitution reaction Explain with the help of chemical reactions.

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Methane, `CH_(4)`

Hydrogen atoms can form one covalent bond, while carbon atoms can form four covalent bonds. Four pairs of electrons are shared in a methane molecule `(CH_(4))`.
When a mixture of methane and chlorine is exposed to ultraviolet light - typically sunlighta substitution reaction occurs and the organic product is chloromethane.
`CH_(4) +CI_(2)rightarrow CH_(3)CI + HCI`
However, the reaction doesn.t stop there, and all the hydrogens in the methane can in turn be replaced by chlorine atoms.
`CH_(4) + CI_(2) rightarrow CH_(3)CI + HCI`
`CH_(3)CI + CI_(2)rightarrowCH_(2)CI_(2) + HCI`
`CH_(2)CI_(2)rightarrowCHCI_(3) + HCI`
`CHCI_(3) + CI_(2) rightarrow-CCI_(4) + HCI`
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