Calculate the bond length of `C-X` bond, if `C-C` bond length is `1.54 Å, X -X` bond length is `1.00 Å` and electronegativity values of `C` and `X` are `2.0` and `3.0` respectively.

Explanation

(1) `C-C` bond length `=1.54 Å`
`r_(C) = (1.54)/(2) = 0.77 Å`
`r_(X) = (1.00)/(2) = 0.05 Å` ltbr. (2) `C-X` bond length ltbr. `d_(C_X) = r_(C) +r_(X) - 0.09 |X_(X) - X_(C)|`
`= 0.77 +0.50 - 0.09 |3-2| = 0.77 +0.50 - 0.09 xx 1 = 1.27 - 0.09 = 1.18 Å`
Thus `C-X` bond length is `1.18 Å`