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Which of the following salts will give highest pH in water
Options
(a) KCl
(b) NaCl
(c) Na₂CO₃
(d) CuSO₄
Correct Answer:
Na₂CO₃
Explanation:
Na₂CO₃ is a salt of strong base (NaOH) and weak acid (H₂CO₃). On hydrolysis this salt will produce strongly basic solution. i.e pH will be highest (pH>7) for this solution. Others are combination of
KCl= strong acid +strong base →neutral solution (pH≈7)
Nacl= strong acid +strong base →neutral solution (pH≈7)
CuSO₄= strong acid + weak base → Acidic solution (pH<7)
Related Questions:
- Which of the following acts as both reducing and oxidising agent
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- Variable valency in general, is exhibited by
- The concentration of [H⁺] and [OH⁻] of a 0.1 M aqueous solution of 2% ionised
- The volume of 2.8g of carbon monoxide at 27⁰C and 0.821 atm pressure is
Topics: Equilibrium
(104)
Subject: Chemistry
(2512)
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