Assertion : Fluorine`(Fe_(2))` is gas white iodine `(I_(2))` is solid at room temperature.
Reason :A large molecule or heavy atom is more polarizable and has larger dispersion forces because it has many electrons some of which are less hightly hekld and are farther from the nucleus.

Options

A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true and the reason is the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. if assertion is false but reason is true.

Answer

a

Explanation

London dispersion forms exits among the non-polar molecules like `F_(2),O_(2),I_(2), CI_(2)` ext in sold liquid states .Evan in atoms in molecules which have no permanent dipole, instancules dipole will as a result of momentary inbalances in electron distribution.London force are exermely short range in action and teh weakest of all attractive forces .The london forces increase molecule volume and teh number of polarizable electrons.