KVPY Sample Paper KVPY Stream-SX Model Paper-20

A complex cation is formed by Pt (in some oxidation state) with ligands (in proper number so that coordination number of Pt becomes six). Which of the following can be its correct IUPAC name?

A) Diammineethylenediaminedithiocyanato-S-Platinum (II)

B) Diammineethylenediaminedithiocyanato- S-Palatinate (IV) ion

C) Diammineethylenediaminedithiocyanato-S-Platinum (IV) ion

D) Diamminebis (ethyienediamnie) dithiocyanato-S-platinum (IV) ion

Correct Answer: C

Solution :

[a] \[{{[Pt(en){{(SCN)}_{2}}{{(N{{H}_{3}})}_{2}}]}^{0}};\]it is not ion

[b] \[{{[Pt(en){{(SCN)}_{2}}{{(N{{H}_{3}})}_{2}}]}^{2+}};\]It should not be palatinate

[c] \[{{[Pt(en){{(SCN)}_{2}}{{(N{{H}_{3}})}_{2}}]}^{2+}};\]Correct name

[d] \[{{[Pt{{(en)}_{2}}{{(SCN)}_{2}}{{(N{{H}_{3}})}_{2}}]}^{2+}};\] its coordination number 8