MHT CET202523 Apr 2025Evening ShiftChemistryIonic EquilibriumActual
Which among the following salts forms basic solution when dissolved in water?
Options
- ANH ₄ NO ₃
- BNa ₂ CO ₃
- CNaNO ₃
- DCuSO ₄
Correct answer
B. Na ₂ CO ₃
Step-by-step solution
Determining salt hydrolysis behavior requires analyzing the acid-base character of constituent ions. Ammonium nitrate ( NH ₄ NO ₃ ) derives from weak base NH ₄ OH and strong acid HNO ₃ . Its cation hydrolyzes: NH ₄^+ + H ₂ O NH ₄ OH + H ^+ , yielding acidic solution. Sodium carbonate ( Na ₂ CO ₃ ) comes from strong base NaOH and weak acid H ₂ CO ₃ . Its anion hydrolyzes: CO ₃²⁻ + H ₂ O HCO ₃^- + OH ^- , producing basic solution. Sodium nitrate ( NaNO ₃ ) forms from strong acid and strong base; neither ion hydrolyze