Which of the following exists in all the three form?
Carbon
Copper sulphate
Water
oxygen
Aerated drinks contain gas .
Oxygen
Nitrogen
Carbondioxide
Methane
Air dissolved in water
Hydrogen dissolved in water
Changes which can be reversed or moved backwards to get the original substance called
Irreversible change
Reversible change
Both a and b
None
Burning of paper is a:
Physical change
Chemical change
When two liquids mix with each other and appears as one liquid,called
miscible
immiscible
soluble
insoluble
The liquid form of ice is
Ice
Steam
Water and oil are liquids of type
Miscible
Immiscible
Both A and B
Utensils placed on the gas stove gets becomes hot due to
Magnetism
Corrosion
Conductivity
Thermal conductivity
Which of the following attract iron magnets ?
Magnetic substance
Wood
Rubber
plastic
