Question

Which pair of molecules is expected to have the most different properties?

a) CH_4and NH_3
b) CO₂ and O₂
c) H₂O and H₂S
d) N₂and O₂

Answer 1

The pair of molecules that is expected to have the most different properties is H₂O and H₂S, due to their different chemical compositions and structures.

Step-by-step explanation:

The pair of molecules that is expected to have the most different properties is (c) H₂O and H₂S. Water (H₂O) and hydrogen sulfide (H₂S) have different chemical compositions and structures, resulting in different physical and chemical properties.

Water is a polar molecule, while hydrogen sulfide is a polar molecule.

Water has a higher boiling point and higher surface tension compared to hydrogen sulfide due to stronger intermolecular forces in water.