Question

The correct $IUPAC$ name of $[Pt(N{H}_3{)}_{2}C{l}_2]$ is

• A. diamminedichloridoplatinum (II)
• B. diamminedichloridoplatinum (IV)
• C. diamminedichloridoplatinum (0)
• D. dichloridodiammineplatinum (IV)

Answer 1

Answer: (A)

Ligands are named in alphabetical order. Ammine comes before chlorido ligand. Hence, option $(D)$ is ruled out. The oxidation state is written ib roman numerals. The correct oxidation state of platinum is $+2$. Hence, options $(B),(C)$ and $(D)$ are ruled out.

Let $X$ be the oxidation state of platinum. The oxidation state of ammonia is $0$ . The oxidation state of chlorine is $-1$. $X+2(0)+2(-1)=0$

$X-2=0$

$X=+2.$

Thus the correct name of the compound is diamminedichloridoplatinum(II)