What is the order of decreasing bond length for a C-C bond comprised of the following molecular orbitals? $$\begin{array} { c c c }
s p ^ { 3 } - s p ^ { 3 } & s p ^ { 2 } - s p ^ { 2 } & s p - s p \
\text { I } & \text { II } & \text { III }
\end{array}$$

Question

What is the order of decreasing bond length for a C-C bond comprised of the following molecular orbitals? $$\begin{array} { c c c } 
s p ^ { 3 } - s p ^ { 3 } & s p ^ { 2 } - s p ^ { 2 } & s p - s p \
\text { I } & \text { II } & \text { III }
\end{array}$$

Quizplus · Accepted Answer

The bond length decreases as the s-character of the hybrid orbitals increases. sp-sp has the highest s-character, leading to the shortest bond, followed by sp2-sp2, and sp3-sp3 has the longest bond.

What Is the Order of Decreasing Bond Length for a C-C