Iron rod turns red on heating- What kind of change is this-Physical changePeriodic changePhysical and chemical changeChemical change

Question

Toppr Admin · Accepted Answer

Physical changes are changes affecting the physical state of a chemical substance- but not its chemical composition- In the case of iron- when iron is heated it will get red colour but there is no change in its chemical form so it is not a chemical change- it is only a physical change-

Iron rod turns red on heating. What kind of change is this?
Physical change
Periodic change
Physical and chemical change
Chemical change

Physical changes are changes affecting the physical state of a chemical substance, but not its chemical composition. In the case of iron, when iron is heated it will get red colour but there is no change in its chemical form so it is not a chemical change, it is only a physical change.

Iron rod turns red on heating. What kind of change is this?Physical changePeriodic changePhysical and chemical changeChemical change

Physical changes are changes affecting the physical state of a chemical substance, but not its chemical composition. In the case of iron, when iron is heated it will get red colour but there is no change in its chemical form so it is not a chemical change, it is only a physical change.

Iron rod turns red on heating. What kind of change is this?
Physical change
Periodic change
Physical and chemical change
Chemical change