question_answer

In a regular octahedral molecule, \[M{{X}_{6}}\], the number \[X-M-X\] bonds at 180° is               [CBSE PMT 2004]

A)                 Six         

B)                 Four

C)                 Three   

D)                 Two

Correct Answer: C

Solution :

           In octahedral molecule six hybrid orbitals directed towards the corner of a regular octahedron with a bond angle of 90°.    according to this geometry, the number of \[X-M-X\] bond at 180° must be three.