On the addition of a small amount of an acid or a base, the pH value of a buffer solution:

increases

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decreases

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remains unaltered

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none of these

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On the addition of a small amount of an acid or a base, the pH value of a buffer solution:

Q. Assertion: A buffer solution has a capacity to resist the change in pH value on an addition of a small amount of acid or base to it.
Reason: An aqueous solution of ammonium acetate can act as buffer.

A solution which resists any change in pH value on the addition of a small amount of an acid or base is called

Q. Assertion :When a small amount of an acid (or) base is added to water

p H

changes. Reason: Addition of acid or base increases the ionization of water.

Assertion $(A) :$ A solution containing a mixture of Acetic Acid and Sodium Acetate maintains a constant value of pH on addition of small amount of acid or alkali.

Reason $(R) :$ A solution containing a mixture of Acetic Acid and Sodium Acetate acts as a buffer solution around $p H 4.75$

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