Every $100\; mL$ of deoxygenated blood delivers approximately?

With reference to the oxyhaemoglobin dissociation curve,select the $INCORRECT$ statement/statements.
$I$. $100\%$ saturation is very common.
$II$. $95-97\%$ saturation takes place at $ppO_2 = 100 \text{ mm Hg}$ in alveoli.
$III$. At $30 \text{ mm Hg}$ of $ppO_2$,only $50\%$ saturation can be maintained.
$IV$. The oxyhaemoglobin dissociation curve is $J$-shaped.
Select the correct option.

Plotting the percentage saturation of hemoglobin with $O_2$ against $PO_2$ results in a:

Which is called Hamburger shift?

With which part of $Hb$,$O_2$ molecules bind?

What is the binding of oxygen with hemoglobin called?