QJEEM04Ch6133: JEE Main 2004 Chemistry - Class 11 JEEM04Ch6133 Solution: The maximum number of 90° angles between bond pair of electrons …

Here eight 90^o angles between bond pair and bond pair. Those angles are $\angle$ 1M2, $\angle$ 2M3, $\angle$ 3M4, $\angle$ 4M1, $\angle$ 5M1, $\angle$ 5M2, $\angle$ 5M3, $\angle$ 5M4.

Here twelve 90^o angles between bond pair and bond pair. Those angles are $\angle$ 1M2, $\angle$ 2M3, $\angle$ 3M4, $\angle$ 4M1, $\angle$ 5M1, $\angle$ 5M2, $\angle$ 5M3, $\angle$ 5M4, $\angle$ 6M1, $\angle$ 6M2, $\angle$ 6M3, $\angle$ 6M4.

Here four 90^o angles between bond pair and bond pair. Those angles are $\angle$ 1M2, $\angle$ 2M3, $\angle$ 3M4, $\angle$ 4M1.

Here six 90^o angles between bond pair and bond pair. Those angles are $\angle$ 1M3, $\angle$ 1M4, $\angle$ 1M5, $\angle$ 2M3, $\angle$ 2M4, $\angle$ 2M5.