Which of the following solutions has the highest $p H$ ?

0.2 M H C l O_{4}

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0.20 M C H_{3} C O O H

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0.020 M H C l

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0.2 M N a C l

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Solution

The correct option is D $0.2 M N a C l$
Apart from NaCl, all other are acid so they will have pH less than 7 but NaCl is salt so it has pH = 7.

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Which of the following solution has highest pH

1) 0.2M HClO₄ 2)0.2M CH₃CH3COOH 3)0.02M HBr 4)0.3M KCl

p H = 4

N a C l

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