Identify the wrong statement with reference to transport of oxygen.

Binding of oxygen with haemoglobin is mainly related to partial pressure of $\displaystyle \mathrm{O}_2$.

Partial pressure of $\displaystyle \mathrm{CO}_2$ can interfere with $\displaystyle \mathrm{O}_2$ binding with haemoglobin.

Higher $\displaystyle \mathrm{H}^{+}$ conc. in alveoli favours the formation of oxyhaemoglobin.

Low $\displaystyle \mathrm{pCO}_2$ in alveoli favours the formation of oxyhaemoglobin.