Hg[Co(SCN)_(4)]

Consider the following statements : (P) [Mn(H_(2)O)_(4)]SO_(4) is paramagnetic and square planar (Q) Crystal field splitting energy (i.e." "triangle_(0)) , in [Cr(H_(2)O)_(6)]^(3+) is higher than in [Cr(H_(2)O)_(6)]^(2+) (R ) Wilkinson catalyst [RhCl(Ph_(3)P)_(3)] , a red-violet complex is diamagnetic and square planar. (S) Hg[Co(SCN)_(4)] , a deep blue complex is paramagnetic and tetrahedral. and of these select the correct set from the given options.

Assertion : Co[Hg(SCN)_(6)] and Hg[Co(SCN)_(6)] are isomers. Reason : SCN^(−) is a stronger ligand as compared to NCS^(−)

The complex Hg[Co(CNS)_(4)] is correctly named as

The complex Hg[Co(CNS)_(4)] is named as :