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NTA Abhyas NEET2020ChemistryIonic EquilibriumPractice

Which of the following salts will give highest pH in water?

Options

  1. ACuS O 4
  2. BKCl
  3. CN a 2 C O 3
  4. DNaCl

Correct answer

C. N a 2 C O 3

Step-by-step solution

N a 2 C O 3 will give highest pH in water because it is a salt of strong base and weak acid so aqueous solution is alkaline with pH more than 7. KCl, & NaCl are salts of strong acid & strong base so aqueous solution is neutral & pH is 7. CuS O 4 is a salt of strong acid &weak base so aqueous solution is acidic with pH less than 7.

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