question_answer

In a regular octahedral molecule, \[M{{x}_{6}},\] the number X-M-X bonds at \[180{}^\circ \]is:

A) Three                           

B) Two

C) Six                               

D) Four

Correct Answer: A

Solution :

[a] Three \[M\times 6\] \[\overset{1}{\mathop{X}}\,-M-\overset{3}{\mathop{X}}\,,\overset{2}{\mathop{X}}\,-M-\overset{4}{\mathop{X}}\,,\overset{5}{\mathop{X}}\,-M-\overset{6}{\mathop{X}}\,\] \[,\,each={{180}^{{}^\circ }}\]