Question

In the case of noble gases, the following trend $Xe>Kr>Ar>Ne>He$ is correct for: i) boiling point ii) solubility in water iii) ionization enthalpy iv) ease of liquefaction.

• A. i) and ii) only
• B. i) and iii) only
• C. ii), iii) and iv) only
• D. i), ii) and iv) only.

Answer 1

The correct option is D i), ii) and iv) only.

Boiling points, Solubility in water and ease of liquefaction increase from He to Xe as the size of atoms of noble gases increase in that order. However, ionization enthalpy increases in the order $Xe<Kr<Ar<Ne<He$.