A : Oxides are more ionic than their corresponding sulphides.
R : Oxygen has a higher electron affinity than sulphur.

Q. Haemoglobin has a higher affinity for oxygen than for carbon monoxide.

Q. State whether true or false:
Haemoglobin has a higher affinity for oxygen than for carbon monoxide.

Q. Assertion :Sulphuric acid is more viscous than water. Reason: Concentrated sulphuric acid has a great affinity for water.

Q. Sulphur and the rest of the elements of group 16 are less electronegative than oxygen. Therefore, their atoms cannot accept electrons easily. They can acquire the $n{s}^{2}n{p}^6$ configuration by sharing two electrons with the atoms of the other elements and thus, exhibit a $+2$ oxidation state in their compounds. In addition to this, their atoms have vacant $d$-orbitals in their valence shell. Electrons can be promoted here from $s$ and $p$-orbitals of the same shell, hence they can show $+4$ and $+6$ oxidation states.
Like sulphur, oxygen does not show $+4$ and $+6$ oxidation states. The reason is that oxygen: