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Inductive Effect

To which of t...

Question

To which of the solution, addition of water would not effect the pH?

A

100 m L

of 0.2 M

C H_{3} C O O H

+

100 m L

of 0.1 M

N a O H

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B

100 m L

of 0.2 M

C H_{3} C O O H

+

100 m L

of 0.2 M

N a O H

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C

200 m L

of 0.2 M

C H_{3} C O O H

+

100 m L

of 0.1 M

N a O H

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D

100 m L

of 0.2 M

C H_{3} C O O H

+

200 m L

of 0.2 M

N a O H

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Solution

The correct options are
A $100 m L$ of 0.2 M $C H_{3} C O O H$ + $100 m L$ of 0.1 M $N a O H$
C $200 m L$ of 0.2 M $C H_{3} C O O H$ + $100 m L$ of 0.1 M $N a O H$
Addition of water will not change pH for buffer solutions only. A buffer solution will be formed only in option (a) and (c).
Option (b) would form a salt and option (d) would be a basic solution due the presence of an excess of the strong base NaOH.

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