GENERAL KNOWLEDGE

GK

GENERAL SCIENCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a chemical change?
A
A change in matter that produces one or more new substances
B
nothing
C
Oxidation, tarnishing
D
____
Explanation: 

Detailed explanation-1: -A change in which one or more new substances are formed is called a chemical change. A chemical change is also called a chemical reaction. Chemical changes are very important in our lives. All new substances are formed as a result of chemical changes.

Detailed explanation-2: -Chemical Change is defined as the process in which the atoms of one or more substances are rearranged or combined to form a new substance. When a substance undergoes chemical change, the chemical properties of the substance changes and it is transformed into a different substance with different chemical composition.

Detailed explanation-3: -(b) Chemical Change: A chemical change is permanent change in which new substances are formed. whose chemical composition and physical and chemical properties are different from those of in original substance.

There is 1 question to complete.