Question

Which coordinate complex from the following has a complex ion with positive charge?

Options

• K₂[HgI₄]

• K₄[Fe(CN)₆]

• [Pt(NH₃)₂Cl₂]

• [Ni(NH₃)₆]Cl₂

Answer 1

[Ni(NH₃)₆]Cl₂

Explanation:

Since counter ion is negatively charged (Cl⁻) and NH₃ is neutral, the complex is positively charged.