What are the characteristics of a chemical reaction?

Open in App

Solution

Certain characteristic changes may occur during a chemical reaction. They are:
Evolution of a gas: In some reactions, the evolution of gas takes place in the form of bubbles.
Change in color: The color change of the reaction mixture may help us in the detection of some chemical reactions.
Formation of precipitate: During some reactions, the product is formed as an insoluble substance. These substances that settle at the bottom are known as a precipitate.
Change of state: When the reaction occurs, the state of the reactant may change and the product that forms may end up in a different state.
Change in energy: Energy may be given out (exothermic) or absorbed (endothermic) during some reactions.

Suggest Corrections

Similar questions

(a) Give one example of a chemical reaction.

(b) State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.

(c) Give two characteristics of the chemical reaction which occurs on adding potassium iodide solution to lead nitrate solution.

(a) What ar noble gases? What are the characteristics of the electronic configuration of noble gases?
(b) What is the cause of chemical bonding (or chemical combination ) of an atom of an element?

What characteristics do you expect from an electron-deficient hydride with respect to its structure and chemical reactions?

Q. What characteristics do you except from an electron-deficient hydride with respect to its structure and chemical reactions?

Q. What are the characteristics of a chemical change?

Join BYJU'S Learning Program