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प्रश्न
State whether the following is physical or chemical changes.
Slaking of lime —
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उत्तर
chemical change.
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संबंधित प्रश्न
Write short answer.
Name two reversible changes.
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Tick the most appropriate answer.
Photosynthesis requires
Write true or false
A natural change can also be a desirable change.
Sublimation is classified as a physical change. Why ?
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
Glowing of an electric bulb.
State which of the following 1 to 5 pertain to – A: Physical Change B: Chemical change :
- Sublimation.
- Fermentation.
- Liquefaction or condensation.
- Magnetization.
- Respiration.
Digestion of food is a physical change.
Stretching gold coin into a ring is a ______ change.
