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12 November, 18:27

Identify which compound is an alkane: ch2o, c6h14, or c3h4. Explain your reasoning.

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  1. 12 November, 18:59
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    C₆H₁₄ is the only Alkane in given compounds.

    Explanation:

    The General Formula for Alkanes is as follow;

    Cₓ H₂ₓ ₊ ₂

    where;

    x = whole number

    It means in alkanes for every x number of carbon atoms we have 2x + 2 number of hydrogen atoms. Let's apply this formula on given compounds.

    CH₂O:

    As there is one carbon atom in this compound hence, the number of hydrogen atoms present for one carbon atom in alkane must be equal to,

    H₂₍₁₎ ₊ ₂

    H₂ ₊ ₂

    H₄

    Hence, this compound is not alkane because it contains only two hydrogen atoms.

    C₆H₁₄:

    As there are six carbon atoms in this compound hence, the number of hydrogen atoms present for six carbon atoms in alkane must be equal to,

    H₂₍₆₎ ₊ ₂

    H₁₂ ₊ ₂

    H₁₄

    Hence, this compound is alkane because it contains fourteen hydrogen atoms.

    C₃H₄:

    As there are three carbon atoms in this compound hence, the number of hydrogen atoms present for three carbon atoms in alkane must be equal to,

    H₂₍₃₎ ₊ ₂

    H₆ ₊ ₂

    H₈

    Hence, this compound is not alkane because it contains only four hydrogen atoms.
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