1.

Co^(2+)(aq)+SCN^(-)(aq) to "complex" (X). Ni^(2+)(aq)+"Dimethylglyoxime" overset(NH_(4)OH) to "Complex" (Y). The coordination number of cobalt and nickel in complexes X and Y are four. Select the correct statement for the complexes (X) and (Y).

Answer»

(X) is paramagnetic with two unpaired electrons.
(Y) is diamagneitc and shows intermolecular H-bonding
(X) is paramagnetic with three unpaired electrons and (Y) is diamagnetic.
(X) and (Y) both are diamagnetic

Solution :`{:([X] to K_(2)[Ni(CN)_(4)],, B to K_(2)[overset(+2)(Ni)(DMG)_(2)]) , ("(Tetrahedral)" , "(Square planar)"), ("(spin free)" , "(spin paired)"), (d^(7) "," SP^(3), d^(8) "," dsp^(2)), (3u.p . E^(-)"(Paramag.)" , "(DIMAG.)"):}`


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