Question

Correct formula for tetraammine chloro nitroplatinum (iv) sulphate

Answer 1

[PtCl(NO2)(NH3)4] SO4

Answer 2

Answer : The correct formula of tetraamminechloronitroplatinum(IV)sulfate is, $[PtCl(NH_3)_4(NO_2)]SO_4$

Explanation :

Rules for writing a formula of the coordination compounds :

• The metal written first then ligands.
• The charge of metal indicated with the Roman numerals and enclosed in the parenthesis after metal name.
• If the complex ion is an anion, we drop the ending of the metal name and add –ate.

In the given coordination compound, platinum is the metal with symbol Pt, $NO_2$, Cl and $NH_3$ are the ligands named as nitro, chloro and ammine.

Hence, the correct formula of tetraamminechloronitroplatinum(IV)sulfate is, $[PtCl(NH_3)_4(NO_2)]SO_4$