Which of the following equimolar solutions, Na₂CO₃ Na₂ SO

₄CI FeCI₃ CH₃COONa,

have pH greater than 7?

• A FeCI ₃ and NH ₄CI
• B Na₂CO₃, CH₃COONa and Na,Na₂SO₄
• C Na₂CO₃ and CH₃COONa
• D FeCI₃, CH₃COONa and NH₄CI