Which compound is both paramagnetic and colored.?

a. #K_2Cr_2O_7#
b. #(NH_4)_2[TiCl_6]#
c. #VOSO_4#
d. #K_3[Cu(CN)_4]#

1 Answer
anor277
Feb 17, 2018

#"c. vanadyl sulfate"#...

Explanation:

We gots #O=V(SO_4)#, and breaking this up into its parent ions we gets...#SO_4^(2-)# and #{V=O}^(2+)#...and in this ion vanadium has a #+IV# oxidation state..i.e. a #d^1# electronic configuration...

Vanadyl salts have a lovely purple colour in aqueous solution..and their salts have a vivid blue colour....

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