JEE Main Chemistry question

At ordinary temperature and pressure, among the halogens, chlorine is a gas, bromine is a liquid and iodine is a solid. This is because

(A)The specific heat is in the order
(B)Intermolecular forces among molecules of chlorine are the weakest and those in iodine are the strongestCorrect
(C)The order of density is
(D)The order of stability is

Answer: (B)

Solution

Down the halogen group, molecular size and the number of electrons increase, strengthening the van der Waals (London dispersion) forces between molecules. Chlorine, being the smallest and lightest of these three, has the weakest intermolecular forces and

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-133559