At ordinary temperature and pressure, chlorine is a gas, bromine' is a liquid and iodine is a solid because

Question

At ordinary temperature and pressure, chlorine is a gas, bromine' is a liquid and iodine is a solid because (A) among them chlorine is the lightest and iodine is the heaviest (B) chlorine has lowest specific heat (C) chlorine molecule is least stable (D) intermolecular forces are the weakest in chlorine and strongest in iodine

Tardigrade Admin · Accepted Answer

Intermolecular forces (van der Waals' forces) increases with increase in molecular weight and size. Intermolecular forces are weakest in chlorine and strongest in iodine.

Q. At ordinary temperature and pressure, chlorine is a gas, bromine' is a liquid and iodine is a solid because

among them chlorine is the lightest and iodine is the heaviest

chlorine has lowest specific heat

chlorine molecule is least stable

intermolecular forces are the weakest in chlorine and strongest in iodine

Intermolecular forces (van der Waals' forces) increases with increase in molecular weight and size. Intermolecular forces are weakest in chlorine and strongest in iodine.