IIT-JEE 1985

All molecules with polar bonds have dipole moment.

SnCl2 is a non-linear molecule

How many sigma bonds and how many pi-bonds are present in a benzene molecule?

The molecule having one unpaired electron is

Calculate the root mean square velocity of ozone kept in a closes vessel at 20oC and 82 cm mercury pressure.

Rate of diffusion of a gas is

Kinetic Energy of a Molecule is zero at 0oC.

A gas in a closed container will exert much higher pressure due to gravity at the bottom than at the top.

Hydrogen gas will not reduce

On Mulliken scale, the average of ionization potential and electron affinity is known as _____.

Arrange the following in:
Decreasing ionic size:
Mg2+, O2-, Na+, F-

Arrange the following in:
Increasing acidic property:
ZnO, Na2O2, P2O5, MgO

Arrange the following in:
Increasing first ionisation potential :
Mg, Al, Si, Na

The oxide that gives hydrogen peroxide on treatment with a dilute acid is

Sodium dissolved in liquid ammonia conducts electricity because ________.

Write down the balanced equations for the reaction when:
Calcium phosphate is heated with a mixture of sand and carbon;

Molecular formula of Glauber's salt is:

Five ml of 8N nitric acid, 4.8ml of 5N hydrochloric acid and a certain volume of 17M sulphuric acid are mixed together and made upto 2 litre. Thirty ml of this acid mixture neutralise 42.9 ml of sodium carbonate solution containing one gram...

Bohr Model can explain

Electromangnetic radiation with maximum wavelength is:

Give reasons why the ground state outermost electronic configuration of silicon is:

What is the maximum number of electrons that may be present in all atomic orbitals with principal quantum number 3 and azimuthal quantum number 2?

The radius of an atomic nucleus is of the order of