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प्रश्न
Select the chemical changes from the following list of changes
Rotting of eggs.
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उत्तर
Rotting of eggs is CHEMICAL change, change in composition takes place, is an irreversible process.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Passing of electric current through water, and water breaking down into hydrogen and oxygen gases.
Fill in the blank
Revolution of the earth around the sun is a ________ change.
True or false
Change of seasons is a non-periodic change.
Fill in the blank
Changes that occur in nature are called ______
Classify the following as physical or chemical change :
Condensation of steam
Classify the following as a physical or a chemical change.
Boiling of water
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Classify the following as physical or chemical properties
The composition of a sample of steel is 98% iron, 1.5% carbon and 0.5% other elements.
Cutting a log of wood into pieces is a chemical change.
Iron pipes coated with zinc do not get rusted easily.
