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प्रश्न
Assertion (A): A solution containing a mixture of acetic acid and sodium acetate maintains a constant value of \[\ce{pH}\] on addition of small amounts of acid or alkali.
Reason (R): A solution containing a mixture of acetic acid and sodium acetate acts as a buffer solution around \[\ce{pH}\] 4.75.
विकल्प
Both A and R are true and R is correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
Both A and R are false.
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उत्तर
Both A and R are true and R is correct explanation of A.
Explanation:
The solutions which resist change in \[\ce{pH}\] on dilution or with the addition of small amounts of acid or alkali are called buffer solutions.
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संबंधित प्रश्न
The ionization constant of benzoic acid is 6.46 × 10–5 and Ksp for silver benzoate is 2.5 × 10–13. How many times is silver benzoate more soluble in a buffer of pH 3.19 compared to its solubility in pure water?
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Which of the Na following is a buffer solution?
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CH3COOH + CH3COONa
Answer the following in one sentence :
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Veronal is used as a/an ______.
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[pKa of acid = 4.74]
The hydrogen ion concentration of a buffer solution consisting of a weak acid and its salts is given by ____________.
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Which of the following will produce a buffer solution when mixed in equal volumes?
Assertion (A): An aqueous solution of ammonium acetate can act as a buffer.
Reason (R): Acetic acid is a weak acid and \[\ce{NH4OH}\] is a weak base.
Calculate the pH of buffer solution composed of 0.01 M weak base BOH and 0.02 M of its salt BA. [Kb = 1.8 × 10–5 for weak base]
Define Acidic buffer solution.
Write any four applications of buffer solution.
Explain the types of buffers with example.
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