The $p H$ of blood circulating in a human body is maintained around $7.4$ by the action of which buffer system?

C H_{3} C O O H / C H_{3} C O O N a

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N H_{4} C l / N H_{3}

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H_{2} P O_{4}^{2 -}

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H_{2} C O_{3} / H C O_{3}^{-}

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Solution

The correct option is D $H_{2} C O_{3} / H C O_{3}^{-}$

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Similar questions

The pH of blood is 7.4. If the buffer in bloods is $C O_{2} a n d H C O_{3}^{-}$ , calculate the ratio of conjugate base to acid $(H_{2} C O_{3})$ to maintain the pH of the blood. Given $K_{1}$ of $H_{2} C O_{3} = 4.5 \times 10^{- 7}$

Q. The

p H

of blood is maintained by

C O_{2}

and

H_{2} C O_{3}

in the body and chemical constituents of blood. This phenomenon is called:

Q. buffer system maintains the pH level of human blood.

Q. The

\frac{[H C O_{3}^{-}]}{[H_{2} C O_{3}]}

ratio in blood (pH = 7.4) is approximately (pKa = 6.1 for

H_{2} C O_{3})

:
(Take log 2 = 0.3, log 3 = 0.5, log 7 = 0.85)

Q. The

[H C O_{3}^{-}] / [H_{2} C O_{3}]

ratio in the blood (pH = 7.4) is approximately

(p K_{a} = 6.1 f o r H_{2} C O_{3})

log 20= 1.301

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The pH of blood circulating in a human body is maintained around 7.4 by the action of which buffer system?

The correct option is D H2CO3/HCO−3

The $p H$ of blood circulating in a human body is maintained around $7.4$ by the action of which buffer system?

The correct option is D $H_{2} C O_{3} / H C O_{3}^{-}$