Q. Which o f the following facts about the complex is wrong?

 2211  161 Coordination Compounds Report Error

Solution:

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In , exists as ion. The outer orbital electronic configuration of is . The orbital diagram is represented by
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Here, X indicates lone pair of donated to Cr. Hence,
(a) hybridization, octahedral. Thus, correct.
(b) There are three unpaired electrons, hence paramagnetic. Thus, correct.
(c) inner orbital complex, thus incorrect.
(d) Due to ionizable ions, white precipitate with , thus correct.