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NEET2012ChemistryIonic EquilibriumActual

Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH value?

Options

  1. ABaCl ₂
  2. BAlCl ₃
  3. CLiCl
  4. DBeCl ₂

Correct answer

A. BaCl ₂

Step-by-step solution

BaCl ₂ is a salt of strong acid HCl and strong base Ba ( OH )₂ . So, its aqueous solution is neutral with pH 7 . All other salts give acidic solution due to cationic hydrolysis, so their pH is less than 7. Thus, pH value is highest for the solution of BaCl ₂ .

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