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15 February, 05:47

The formulas for ethane, ethene, and ethyne are C 2 H 6 C2H6, C 2 H 4 C2H4, and C 2 H 2 C2H2, respectively. Rank these compounds by the length of the carbon-carbon bond.

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  1. 15 February, 05:55
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    Ethane (1.09 A) > Ethene (1.076 A) > Ethyne (1.06 A)

    Explanation:

    The types of bonds present are:

    a) Ethane : single bond

    b) Ethene : double bond (one sigma one pi)

    c) Ethyne: triple bond (one sigma and two pi bonds)

    More the number of bonds lesser the bond length.

    Thus the order of bond length of carbon-carbon bond will be:

    Ethane (1.09 A) > Ethene (1.076 A) > Ethyne (1.06 A)
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