ICSE Class 12 Chemistry — Flashcards for Quick Revision

A: A solution is a homogeneous mixture of two or more substances. Example: sugar dissolved in water forms a homogeneous liquid solution.

A: The component present in excess and whose physical state is the same as that of the solution is called the solvent. The other component present in smaller amount is called the solute. Example: in suga

A: Binary solutions have 2 components, ternary solutions have 3 components, and quaternary solutions have 4 components.

A: Electrochemistry is the branch of chemistry that deals with the study of the conversion of chemical energy into electrical energy or vice versa and their mutual relationship.

A: A galvanic cell is a device that converts chemical energy into electrical energy through a spontaneous redox reaction. Examples include Volta cell, Daniell cell, Leclanche cell, and dry cell.

A: An electrolytic cell is a device that converts electrical energy into chemical energy by passing D.C. current through an electrolyte or fused salt to cause a non-spontaneous redox reaction.

A: Chemical kinetics is the branch of chemistry which deals with the study of reaction rates and the mechanism by which reactions occur.

A: Rate of reaction = change in concentration of a reactant or product per unit time. It can be written as decrease in reactant concentration or increase in product concentration per unit time. General

A: Average rate is the change in concentration over a finite time interval Δt, so it is not the true rate at a particular moment. Instantaneous rate is the rate at a particular instant of time and is wri