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प्रश्न
Classify the following as physical or chemical change :
Formation of curd from milk
विकल्प
Physical change
Chemical change
उत्तर
Formation of curd from milk – Chemical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Dissolving common salt in water.
State whether the following is physical or chemical changes.
shaping a piece of glass —
True or false
Change of seasons is a non-periodic change.
Fill in the blank with the appropriate word of the statement given below:
Germination of seeds is considered a __________ change.
State which of the following terms connected with change of state of matter i.e.
(a) Melting
(b) Vaporisation
(c) Condensation
(d) Freezing
pertain to –
- Conversion of a liquid into a vapour or gas.
- Conversion of a liquid into a solid.
- Conversion of a solid into a liquid on heating.
Select the chemical changes from the following list of changes
The crystallisation of salt from its solution.
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 |
Physical Change: Boiling::Chemical Change: ______.
Natural changes which take place in nature on their own, are beyond the control of human being.
Water is known as a universal solvent. Why?