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प्रश्न
Digestion of food is a physical change.
विकल्प
True
False
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उत्तर
Digestion of food is a physical change- False.
Correct statement
Digestion of food is a chemical change.
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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.
Heat is .................... by a gas during the process of condensation.
State four differences between physical and chemical changes.
Fill in the blank
Changes that occur in nature are called ______
Write true or false
A natural change can also be a desirable change.
State why addition of sodium chloride to water is considered a physical change, while addition of dilute sulphuric acid to zinc is considered a chemical change.
Name the following.
A form of energy required for a chemical change.
Assertion: Burning of wood log to charcoal is a physical change.
Reason: The products formed of burning a piece of wood can be easily converted back to wood log.
Water is known as a universal solvent. Why?
Classify the following as physical or chemical properties
Metallic sodium is soft enough to be cut with a knife.
