Question

Compare $x$ and $y$ bond lengths for the above given molecule.

• A. $x>y$
• B. $y>x$
• C. $x=y$
• D. None of these

Answer 1

The correct option is A $x>y$

The distance between two $Al$ atoms $\left(x\right)$ is greater than the $Al-C$ bond length $\left(y\right)$. This is because, there is no covalent bond between two $Al$ atoms whereas $Al$ and $C$ are joined by a covalent bond. $x=270$ pm; $y=196$ pm.