Every $100 \ ml$ of oxygenated blood can deliver around $............$ of $O_2$ to the tissues under normal physiological conditions. (in $ml$)

Given below are two statements.
Statement $I$: Carbonic anhydrase enzyme is found in $RBCs$ and is absent in plasma.
Statement $II$: The rate of formation of carbonic acid is very high inside $RBCs$ than in plasma.
In light of the above statements, select the correct answer from the options given below.

How many oxygen molecules can one hemoglobin molecule carry?

State the different modes of $CO_2$ transport in blood.

What is the amount of $O_{2}$ supplied to tissues through every $100 \ ml$ of oxygenated blood under normal physiological conditions (in $ml$)?

Under a given concentration in blood,dissociation of oxyhaemoglobin will increase if