Science (English Medium) Class 12 - CBSE Question Bank Solutions for Chemistry

The hardest substance among the following is:

Molality of a solution relates the ____________.

Molarity of the solution is ____________.

The sum of all mole fraction for a mixture is always equal to ____________.

Galvanic or a voltaic cell converts the chemical energy liberated during a redox reaction to ____________.

Standard electrode potential is measured taking the concentrations of all the species involved in a half-cell is ____________.

Standard hydrogen electrode operated under standard conditions of 1 atm H₂ pressure, 298 K, and pH = 0 has a cell potential of ____________.

For which of the following reaction the units of rate constant and rate of the reaction are same?

The impurities associated with an ore is known as ____________.

Which technique utilizes the density difference between the ore and the impurity to concentrate the ore is:

The diagram shows a schematic representation of

In laboratory ammonia is prepared by heating:

Ammonia has a higher boiling point and is less volatile because of ____________.

Which compound is used in the preparation of caprolactam?

Which compound is used as the cooling liquid in refrigerators?

Ammonia act as a Lewis base because nitrogen has ____________.

Which among the following elements does not belong to the first transition series?

Which among the following is not considered as a part of transition elements?

Electronic configuration of Cu³⁺ is ____________.

Which of the following represents a chelate ligand?