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Which of the following statements is correct for ClF_{3} ?

Option: 1

All bond length Cl-F are identical.


Option: 2

All bonds are identical


Option: 3

Equatorial bonds are larger than axial bond.


Option: 4

Equatorial bonds are smaller than axial bond.


Answers (1)

best_answer

ClF3 has 5 electron groups/pairs around the central Cl atom ( Three bonds and two lone pairs). With 5 electron groups around the central atom, the molecule will adopt a trigonal bipyramidal shape.

F atoms occupy the axial positions and one F occupies the equatorial positions of trigonal bipyramidal arrangement. Usually, the bond length between Cl - F axial is more than the Cl - F equatorial in order to reduce the repulsions between the lone pair - lone pair, bond pair - lone pair, and bond pair-bond pair repulsions, according to VSEPR theory.

Hence, the option number (4) is the correct option.

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