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प्रश्न
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
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उत्तर
Physical change
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संबंधित प्रश्न
State the Differences Between a Physical Change and a Chemical Change.
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
What will you take into account while identifying the following?
A physical change in a substance.
Give reasons why – separation of mixtures e.g. iron from a mixture of iron and sulphur is a physical change, but heating a mixture of iron and sulphur is considered a chemical change.
Give the reason why the following is considered as chemical changes.
An iron nail kept open in the atmosphere rusts.
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible 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.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Which of the following is a physical change?
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
