Advertisements
Advertisements
प्रश्न
Assertion: The formation of iron oxide from iron is a chemical change.
Reason: For the rust to form from iron, it must be exposed to air and water.
पर्याय
Both A and R are true and R is the correct explanation of A.
Both A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false but R is true.
उत्तर
Both A and R are true and R is the correct explanation of A.
APPEARS IN
संबंधित प्रश्न
How do the following help in bringing about a chemical change?
catalyst .
Name three biochemical catalysts found in the human body.
What are oxides ?
Fill in the blank
A change in which the substance can be brought back to its original state is called a _______ change.
Copper carbonate when heated, it turns :
______ is not a chemical change.
The water we drink is a combination of hydrogen and oxygen.
Classify the following as physical or chemical properties
Zinc dissolves in hydrochloric acid with the evolution of hydrogen gas.
Write the chemical reaction of baking soda with lemon.
Write a note on the catalyst.
