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  • Which of the following facts about the complex  is wro

Which of the following facts about the complex \mathrm{[Cr(NH_3)_6]Cl_3} is wrong?

Option: 1

The complex involves \mathrm{d^{2} s p^{3}} hybridisation and is octahedral in shape


Option: 2

The complex is an outer orbital complex 


Option: 3

The complex is paramagnetic


Option: 4

The complex gives white precipitate with silver nitrate.


Answers (1)

best_answer

As we have learnt,

Electronic configuration of \mathrm{Cr^3^+} is \mathrm{[Ar]3d^34s^0}

So, irrespective of the strength of the ligand, \mathrm{Cr^{3+}} always forms inner orbital complexes with \mathrm{d^{2}sp^3} hybridised hexa-coordinated complexes

The given complex has chloride ions outside the coordination sphere, hence it will give a white precipitate of \mathrm{AgCl} with \mathrm{AgNO_3}

Therefore, option (2) is correct.

Posted by

chirag

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