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Assertion : A mixture of 100 ml of 0.2 M $C H_{3} C O O H$ and 100 ml of 0.1 M NaOH acts as buffer solution.
Reason : When $C H_{3} C O O N a$ is added to $C H_{3} C O O H$ solution pH of acetic acid solution increases due to common ion effect

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Both A and R are correct R is the correct explanation of A

Both A and R are correct R is not the correct explanation of A

A is false, R is true

A is true R is false

answer is B.

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Detailed Solution

$[W . a c i d] > [S . b a s e]$ so 100 ml of 0.2 M CH₃COOH and 100 ml of 0.1 M NaOH mixture can act as buffer $\Rightarrow$ when CH₃COONa is added to CH₃COOH solution [H⁺] decreases so p^H increases

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