Which of the following is not a correct statement? - Vidyadip

MCQ

Which of the following is not a correct statement?

A
Multiple bonds are always shorter than corresponding single bonds.
B
The electron-deficient molecules can act as ewis acids.
C
The canonical structures have no real existence.
✓
Every $AB_5$ molecule does in fact have square pyramid structure.

✓

Answer

Correct option: D.

Every $AB_5$ molecule does in fact have square pyramid structure.

d
Generally, $A B_{5}$ molecules have trigonal bipyramidal structure due to $s p^{3} d$ hybridisation but in some cases due to presence of lone pair of electrons, its geometry becomes distorted.

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