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प्रश्न
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
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उत्तर
Physical Change.
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संबंधित प्रश्न
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Write short answer.
What are man-made changes ?
Make a list of different types of changes with example.
State whether the following is physical or chemical changes.
glowing of a bulb -
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Select the correct answer from the choice given below to complete the sentence
The dissolution of lead nitrate in water is deemed as a _________ change.
State whether the following statement is true or false:
Anaerobic bacteria digest animal waste and produce biogas.
Mention some of the different conditions needed for chemical changes to occur.
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
