Practice question

Given: The solubility product of MnS is 2.5 × 10⁻¹³. What is its solubility in water? These values define the system as per NCERT data. Formula: MnS(s) <=> Mn²+ + S²-, K_{sp = S². This is standard NCERT relation. Substitution & Calculation: S² = 2.5 × 10⁻¹³, S = sqrt2.5 × 10⁻¹³approx 5.0 × 10⁻⁷M. Result: The computed value matches expected outcome and confirms correct choice as per NCERT.