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प्रश्न
What type of change is colouring of a paper?
उत्तर
Physical change.
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संबंधित प्रश्न
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Changes in which only ______ properties of a substance change are called physical changes.
When a candle burns, both physical and chemical changes take place. Identify these changes. Give another example of a familiar process in which both the chemical and physical changes take place.
State three differences between evaporation and boiling
Classify the following as physical or chemical change :
Formation of curd from milk
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
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.
Sublimation of Iodine is a ______.
Which of the following is not a physical change?
