Assertion :Mixture of ${C H}_{3} C O O H$ and ${C H}_{3} C O O {N H}_{4}$ is an example of acidic buffer. Reason: Acidic buffer contains equimolar mixture of a weak acid and its salt with weak base.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is D Both Assertion and Reason are incorrect
A solution that resists change in pH value upon addition of small amount of strong acid or base (less than 1 %) or when solution is diluted is called buffer solution.

Basic buffer solution : A basic buffer solution consists of a mixture of a weak base and its salt with strong acid. The best known example is a mixture of $N H_{4} O H$ and $N H_{4} C l .$

Acidic buffer solution : An acidic buffer solution consists of solution of a weak acid and its salt with strong base. The best known example is a mixture of solution of acetic acid and its salt with strong base.( $C H_{3} C O O N a)$

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Similar questions

Q. Assertion :Mixture of

{C H}_{3} C O O H

and

{C H}_{3} C O O {N H}_{4}

is not a buffer solution. Reason: Acid buffer contains the mixture of weak acid and its salt with strong base.

Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. $H N O_{3} a n d H_{2} S O_{4}$ mixture.
Reason (R) - OH group in phenol is o-,p-directing.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Addition reaction of water to but-1-ene in acidic medium yields butan-1-ol.
Reason (R) Addition of water in acidic medium proceeds through the formation of primary carbocation.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Ethanol is a weaker acid than phenol.
Reason (R) Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

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Assertion :Mixture of CH3COOH and CH3COONH4 is an example of acidic buffer. Reason: Acidic buffer contains equimolar mixture of a weak acid and its salt with weak base.

Assertion :Mixture of ${C H}_{3} C O O H$ and ${C H}_{3} C O O {N H}_{4}$ is an example of acidic buffer. Reason: Acidic buffer contains equimolar mixture of a weak acid and its salt with weak base.