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प्रश्न
True or false
Is the process of digestion a physical change?
विकल्प
True
False
उत्तर
false
APPEARS IN
संबंधित प्रश्न
Write true or false for the statement.
Burning of paper and formation of curd are reversible changes
Chemical changes are accompanied by changes in energy.
Fill in the blank
Changes that occur in nature are called ______
What are man-made changes ?
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Name the following:
The term involved in the change of state from – ‘water to ice’ – which is a physical change.
State which of the following pertain to – chemical changes.
(a) Substance retains its identity
(b) The change is permanent
(c) No new substance is formed
(d) Is easily reversible
(e) Produces one or more new substances by a change in its composition
(f) The change is temporary
(g) The composition and properties of the original substance are not altered.
Match the examples of changes in List I with the correct type of change in List II.
| List I | List II |
| 1. Burning of paper | A: Physical change |
| 2. The ringing of an electric bell | B: Chemical change |
| 3. Curdling of milk | |
| 4. Electric light is switched on | |
| 5. Melting of butter |
Which of the following is a physical change?
Which of the following is not a physical change?
