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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

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

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प्रश्न

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

पर्याय

  • NH4OH + NH4Cl

  • \[\ce{HCO^-_3 + H2CO3}\]

  • CH3COOH + CH3COONa

  • citric acid + Mg(OH)2

MCQ

उत्तर

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

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Buffer Solutions
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 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?


A solution of NH4Cl and NH4OH acts as a buffer.


Cu is precipitated as CuS while  Zn is not precipitated when H2S is passed through an acidic solution of Cu(NO3 )2  and Zn(NO3)2 respectively.


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 :

Sodium benzoate + benzoic acid


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


Write one application of the following buffer:

Citrate buffer


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.


Veronal is used as a/an ______.


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]


Which will make basic buffer?


The dissociation constant of a weak acid is 1 × 10−3. In order to prepare a buffer solution with a pH = 4, the `(["Acid"])/(["Salt"])` ratio should be ____________.


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 the applications of buffer solution.


What are buffer solutions? 


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


Explain the types of buffers with example.


Explain buffer action of sodium acetate-acetic acid buffer.


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