Arrange the aqueous solutions of the following salts in the increasing order of their pH . I .   CuSO 4…

Arrange the aqueous solutions of the following salts in the increasing order of their pH.

I. CuSO4II. NaCNIII. KCl

  1. I<II<III
  2. I<III<II
  3. III<II<I
  4. II<III<I

Solution

The pH of the solutions will be as given below:

I. CuSO4: Salt of strong acid and weak base pH<7II. NaCN: Salt of weak  acid and strong base pH>7 III. KCl: Salt of strong acid and strong base pH=7 

 

Asked in: AP EAMCET 2018 (25 Apr Shift 1)

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