JEE MAIN - Chemistry (2011 - No. 18)
Which of the following facts about the complex [Cr (NH3)6 ]Cl3 is wrong?
The complex is paramagnetic
The complex is an outer orbital complex
The complex gives white precipitate with silver nitrate solution
The complex involves d2sp3 hybridization and is octahedral in shape.
Explanation
$$\left[ {Cr{{\left( {N{H_3}} \right)}_6}} \right]C{l_3}\,\,$$ is an inner orbital complex, because in this complex $$d-$$orbital used is of lower quantum number i.e. $$(n-1).$$ It results from $${d^2}\,\,\,$$ $$s{p^3}$$ (inner orbital) hybridization.
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