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प्रश्न
When ice melts to form water, change occurs in its
पर्याय
position
colour
physical state
composition
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उत्तर
Physical state
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संबंधित प्रश्न
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Melting of solid (wax) is a physical change.
State whether the following is physical or chemical changes.
Slaking of lime —
Classify the following as a physical or a chemical change.
Burning of paper
Classify the following as a physical or a chemical change.
Burning of coal
Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.
State the conclusions which can be drawn, to represent photosynthesis as a physical or a chemical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of butter and wax are examples of chemical changes.
Give a reason why
Freezing of water is a reversible change while burning of a candle – an irreversible change.
State which of the following terms connected with change of state of matter i.e.
(a) Melting
(b) Vaporisation
(c) Condensation
(d) Freezing
pertain to –
- Conversion of a liquid into a vapour or gas.
- Conversion of a liquid into a solid.
- Conversion of a solid into a liquid on heating.
Select the chemical changes from the following list of changes
Rotting of eggs.
