Solve this:
Q). $C{O}_2$ is dissolved in haemoglobin or blood plasma as
(1) Carbonates
(2) Bicarbonates
(3) Oxyhaemoglobin
(4) Carboxyhaemoglobin

Dear student,

CO₂ is dissolved in the blood plasma as - 
(b)    - Bicarbonate Ions - The The RBC has an anion exchanger which releases HCO₃^- into the blood where it gets associated with CO₂ and Na⁺ and forms bicarbonate ion and then transported along the blood.

Regards.