Question

Which of the following are correct with respect to chemical reactions?
(i) Chemical compositon changes
(ii) Formation of new products takes place
(iii) We can’t obtain the intial reactants by simple physical means like filtering, dissolving etc.

• A. Chemical compositon changes
• B. Formation of new products takes place
• C. We can’t obtain the intial reactants by simple physical means like filtering, dissolving etc.
• D. All of these

Answer 1

The correct option is D

All of these

In chemical reactions, the chemical composition of the reactants changes resulting in new products. The initial reactants cannot be obtained by simple physical means like filtering, dissolving etc. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from that of the reactants.