A) sodium bicarbonate
B) sodium carbonate
C) potassium carbonate
D) magnesium carbonate
Correct Answer: A
Solution :
70% of \[C{{O}_{2}}\] is carried in blood as bicarbonate. Bicarbonate in plasma combines with sodium to form \[NaHC{{O}_{3}}\]. \[C{{O}_{2+}}+{{H}_{2}}O\xrightarrow[anhydrase]{carboni}{{H}_{2}}C{{O}_{3}}\] \[N{{a}^{+}}+HC{{O}_{3}}NaHC{{O}_{3}}\]
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