Advertisements
Advertisements
प्रश्न
The rusting of an iron object is called :
पर्याय
corrosion and it is a physical as well as a chemical change
dissolution and it is a physical change
corrosion and it is a chemical change
dissolution and it is a chemical change
Advertisements
उत्तर
corrosion and it is a chemical change
Rusting of iron takes place in the presence of air (O2) and water vapour. Action of air and moisture on iron converts it to its oxide. This process is called corrosion and it leads to the formation of a new compound. Therefore, it is a chemical change.
APPEARS IN
संबंधित प्रश्न
Write true or false for the statement.
Dissolving of solute in a solvent and rusting of iron are both physical changes.
State whether the following is physical or chemical changes.
lightning —
Write true or false
Cutting of paper into pieces is a chemical change.
State the Differences Between a Physical Change and a Chemical Change.
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
Is a change of state of matter – a physical or a chemical change. Give reasons.
Select the chemical changes from the following list of changes
Rotting of eggs.
Select the chemical changes from the following list of changes
The carbon cycle.
Water is the universal solvent. Why?
