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प्रश्न
Tick (√) the correct alternative from the choice given for the following statement.
An example of both physical and chemical change is
विकल्प
burning of candle
melting of ice
cooking of food
blowing of bulb
उत्तर
burning of candle
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संबंधित प्रश्न
Write true or false for the statement.
Deforestation is a man-made change
Write true or false for the statement.
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Ripening of fruits is a desirable change.
Classify the following as physical or chemical change :
Condensation of steam
Classify the following as a physical or a chemical change.
Drying of wet clothes
What will you take into account while identifying the following?
A chemical change in a substance.
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Give the reason why the following is considered as chemical changes.
Sulphur when burnt in air evolves a gaseous acidic product.
When solute is dissolved in a solvent it forms a solution.
The change of state of a substance from solid to liquid and liquid to gas is ______.
