The following reaction is known to occur in the body $C O_{2} + H_{2} O + H_{2} C O_{3} \overset{}{⇌} H^{+} + H C O_{3}^{-}$
If CO₂ escapes from the system

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Hydrogen ion concentration will diminish

pH will decrease

$H_{2} C O_{3}$ concentration will be altered

The forward reaction will be promoted

answer is B.

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Detailed Solution

When some $C O_{2}$ escapes from the body, the equilibrium will shift to left that more $C O_{2}$ will nullify the effect of loss of $C O_{2}$ .Due to this, hydrogen ion concentration will decrease.
Hence, the correct option is (B).

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