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Question
Classify the Following as a Physical Or a Chemical Change.
Curdling of Milk
Solution
Chemical change
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RELATED QUESTIONS
How do you say that the process of digestion is a chemical change ?
Name a chemical change which takes place in presence of:
State whether the following is physical or chemical changes.
burning of sugar —
State whether the following is physical or chemical change.
Digestion of food —
True or false
In a physical change no net energy change is involved.
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 |
Stretching gold coin into a ring is a ______ change.
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
Higher order Thinking question
Boiling of water is a physical change; but boiling of egg is a chemical change. Why?
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
