Test SeriesFree PYQsExamsPricing

JEE Main Chemistry question

ChemistryThe p-Block ElementsJEE Main

How many of the following orders are CORRECT with respect to the given properties of noble gases? 1. He < Ne < Ar < Kr < Xe (enthalpy of vapourization) 2. He > Ne > Ar > Kr > Xe (solubility in water) 3. He < Ne < Ar < Kr < Xe (melting point) 4. He > Ne > Ar > Kr > Xe (ionization enthalpy)

Answer: 3

Solution

(1) Enthalpy of vapourization genuinely increases down the group with increasing van der Waals forces — CORRECT. (2) Solubility in water actually increases down the group (Xe most soluble, He least), the opposite of what this statement claims — INCORRECT. (3)

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-147140