Two electrons in the same spin cannot occupy the same orbital.

A coordinate bond or dative bond is a special type of covalent bond.

Ammonium ion, NH4+ contains three single covalent bonds and one coordinate bond.

Hydrogen fluoride, HF is a non-polar covalent molecule.

How many maximum number of electrons can M shell contain?

Which one is the strongest among the intermolecular forces?

Which is the bond angle of H-N-H in ammonia molecule?

Which of the following molecule is an expanded valence shell molecule?

Which bond has the strongest bond strength?

Iron rusting is an endothermic and spontaneous reaction.

Standard enthalpy change is measured at 273K and 760 mmHg.

If the energy absorbed in bond breaking is more than the energy given out in bond making, the reaction is endothermic.

Enthalpy change is the heat change accompanying a chemical reaction at constant ___.

Dissolving ammonium chloride in water is a/an ___ process.

There is a temperature rise in the surrounding when ___ takes place.

The rate of reaction depends on the rate of successful collisions between reactant particles.

Most heterogeneous catalysts are solid that catalyse either gaseous or liquid reactants.

Reactions that are initiated by heat are called photochemical reactions

In the Boltzmann distribution curve, when the higher temperature is decreased to the lower temperature, the curve shape changes to a flat pattern.

White phosphorus bursts into flame when exposed to ___