हिंदी

In biochemical system, pH of blood in our body is maintained due to the following buffer:

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प्रश्न

In biochemical system, pH of blood in our body is maintained due to the following buffer:

विकल्प

  • NH4OH + NH4Cl

  • \[\ce{HCO^-_3 + H2CO3}\]

  • CH3COOH + CH3COONa

  • citric acid + Mg(OH)2

MCQ
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उत्तर

\[\ce{HCO^-_3 + H2CO3}\]

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अध्याय 3: Ionic Equilibria - Multiple choice questions

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संबंधित प्रश्न

When NH4 Cl and NH4OH are added to a solution containing both, Fe3+ and Ca2+ ions, which ion is precipitated first and why?


Choose the most correct answer:

Which of the Na following is a buffer solution?


Answer the following in one sentence :

How are basic buffer solutions prepared?


Answer the following in one sentence :

Write one property of a buffer solution.


Answer the following in one sentence :

Classify the following buffers into different types :

CH3COOH + CH3COONa


Answer the following in one sentence :

Classify the following buffers into different types :

Cu(OH)2 + CuCl2


The pKb of weak base BOH [Kb(BOH) = 1 × 10-5] will be ______.


Name the buffer which is used to maintained pH of 8 to 10 for precipitation of cations III A group in qualitative analysis.


Define buffer solution.


Explain the types of buffer solutions.


Write one application of the following buffer:

Citrate buffer


Write one application of the following buffer:

NH4OH + NH4Cl


A buffer solution contains 0.3 mol dm–3 NH4OH (Kb = 1.8 × 10–5) and 0.4 mol dm–3 NH4Cl. Calculate pOH of the solution.


What is the pH of 0.5 litre buffer solution containing 0.01 mole of CH3COOH and 0.01 mole of CH3COONa?

[pKa of acid = 4.74]


____________ forms a basic buffer solution.


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.


Write any four applications of buffer solution.


Calculate pKa of HF if Ka= 7.2 x 10-4.


Explain buffer action of sodium acetate-acetic acid buffer.


What is the pH of buffer solution formed by mixing 0.01 M acetic acid and 0.05 M sodium acetate? (pKa = 4.7447)


A buffer solution is prepared by mixing 0.1 M ammonia solution and 0.25 M solution of NH4CI. What is the value of pKb to maintain its pOH at 6?


A buffer solution is prepared by mixing 0.01 М HCN and 0.02 M sodium cyanide. If pKa for HCN is 5.20, what is the pH of solution?


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