A mixture of NH 4 Cl and NH 4 OH shows no change in pH upon addition small amount of HCl- This is because it isA- A neutral solutionB- An acidic solution due to presence of NH 4 ClC- A basic solution due to presence of NH 4 OHD- A buffer

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Standard IX

Chemistry

Salts and pH of Salts

A mixture of ...

Question

A mixture of NH₄Cl and NH₄OH shows no change in pH upon addition small amount of HCl. This is because it is

A neutral solution

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An acidic solution due to presence of NH₄Cl

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A basic solution due to presence of NH₄OH

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A buffer

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Solution

The correct option is D
A buffer

A mixture of weak base and its salt with a strong acid serves as an basic buffer which resists changes in pH upon addition of small amount of acid or base.

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Similar questions

A buffer is a solution of weak acid and its conjugate base or a weak base and its conjugate acid. It resists the change in

p H

, when small amount of strong acid or base is added to it. Buffer solutions have wide applications.

H C l

gas is passed through an aqueous solution of 0.1M 1-aminopropane

(P r N H_{2})

till the

p H

reaches 9.71. Calculate the ratio of

[P r N H_{2}] / [P r N H_{3}^{+}]

in this solution.

[K_{a} (P r N H_{3}^{+}) = 1.96 \times 10^{- 11}

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.

Q. Amount of oxalic acid present in a solution can be determined by its titration with

K M n O_{4}

solution in the presence of

H_{2} S O_{4}

The titration gives unsatisfactory result when carried out in the presence of

H C l

, because

H C l

Q. Assertion :Addition of

{N H}_{4} O H

to an aqueous solution of

B a {C l}_{2}

in the presence of

{N H}_{4} C l

(excess) precipitates

B a {(O H)}_{2}

. Reason:

B a {(O H)}_{2}

is insoluble in water.

Q. Assertion: Addition of

N H_{4} O H

to an aqueous solution of

B a C l_{2}

in the presence of excess

N H_{4} C l

precipitates

B a (O H)_{2}

.
Reason:

B a (O H)_{2}

is soluble in water.

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A mixture of NH4Cl and NH4OH shows no change in pH upon addition small amount of HCl. This is because it is

The correct option is D A buffer A mixture of weak base and its salt with a strong acid serves as an basic buffer which resists changes in pH upon addition of small amount of acid or base.

A mixture of NH₄Cl and NH₄OH shows no change in pH upon addition small amount of HCl. This is because it is

The correct option is D
A buffer

A mixture of weak base and its salt with a strong acid serves as an basic buffer which resists changes in pH upon addition of small amount of acid or base.