GKFix MCQ Question

What is the correct expression for the solubility product of nickel(II) hydroxide (Ni(OH)₂)?

• A. Ksp = [Ni²⁺][OH⁻]
• B. Ksp = [Ni²⁺]²[OH⁻]
• C. Ksp = [Ni⁺][OH⁻]²
• D. Ksp = [Ni²⁺][OH⁻]²