Advertisements
Advertisements
प्रश्न
Select the chemical changes from the following list of changes
Change of seasons
Advertisements
उत्तर
Change of season is a PHYSICAL change, only change in temperature is seen and is a reversible change.
APPEARS IN
संबंधित प्रश्न
Classify the changes involved in the following process as physical or chemical changes:
Photosynthesis
Classify the following changes as physical or chemical:- melting of a solid (wax)
State whether the following is physical or chemical changes.
glowing of a bulb -
Write true or false
Rusting of iron is a chemical change.
Tick the most appropriate answer.
Physical changes are
Give reasons why – separation of mixtures e.g. iron from a mixture of iron and sulphur is a physical change, but heating a mixture of iron and sulphur is considered a chemical change.
Give a reason why – Heating a platinum wire is a reversible change but, heating a magnesium wire is an irreversible change.
Select the chemical changes from the following list of changes
Vaporisation of water into water vapour.
Select the chemical changes from the following list of changes
The occurrence of lightning.
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
