Burning of paper is a:
Physical change
Chemical change
Reversible change
Which among the following have a definite shape,size and volume ?
Solids
Liquids
Gas
Mixture
Air dissolved in water
Hydrogen dissolved in water
Utensils placed on the gas stove gets becomes hot due to
Magnetism
Corrosion
Conductivity
Thermal conductivity
Corrosion is
Useful
Harmful
Both A and B
no use
Ice melts and turns into liquid.The change is
Chemical
Physical
irreversible
When two liquids mix with each other and appears as one liquid,called
miscible
immiscible
soluble
insoluble
Which of the following flow from a higher level to a lower level?
matter
All substances are made up of very tiny particles called
Molecules
Atoms
Matter
None
Which among the following is a chemical change ?
Combustion
conduction
