Among noble gases,gas of highest density is a) He b)Kr c)Xe d)Rn

The noble gas with the highest boiling point is :

Which of the following gases has the highest density under standard conditions?

Density of a gas 'd' is

Which of the noble gas has highest polarizability

Assertion : Noble gases have highest ionisation enthalpies in their respective periods. Reason : Noble gases have stable closed shell electronic configuration.

A : Noble gases have highest ionization energies in their respective periods . R : The outer most sub-shell of noble gases in which electron enters is completely filled .

Among the noble gases only xenon is well known to form chemical compounds.

Among noble gases (from He to Xe ) only xenon reacts with fluorine to form stable fluorides because xenon :

Which of the following statements is wrong for gases? (a)Gases do not gave a definite shape and volume (b)Volume of the gas is equal to volume of container confining the gas (c)Confined gas exerts uniform pressure on the walls of its container in all directions (d)Mass of gas cannot be determined by weighing a container in which it is enclosed

How will you justify the following postulates of the kinetic theory of gases ? (i) Molecules in a gas follow zig-zag path. (ii) Collisions among the gas molecules are of elastic nature. (iii) There are no forces of interaction among the gas.