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प्रश्न
What type of change is colouring of a paper?
उत्तर
Physical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Write true or false
Melting of ice is a physical change.
Tick the most appropriate answer.
Photosynthesis requires
Separate the following into physical and chemical changes :
Sublimation of a solid, Decomposition of water into hydrogen and oxygen by passing electric current, Formation of clouds, Making a fruit salad from raw fruits, Dissolving carbon dioxide in water
Which of the following are physical changes ?
- melting of iron metal
- rusting of iron metal
- bending of an iron rod
- drawing a wire of iron metal
Classify the Following as a Physical Or a Chemical change.
Glowing of an Electric Bulb
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Select the chemical changes from the following list of changes
Drying of a fruit
Name the following.
The product of the chemical change in keeping a polished iron nail exposed to the atmosphere.
Match the items of Column I with the items of Column II
| Column 1 | Column II | ||
| (a) | Large crystals | (i) | Turns lime water into milky |
| (b) | Depositing a layer of zinc on iron | (ii) | Physical change |
| (c) | Souring of milk | (iii) | Rust |
| (d) | Carbon dioxide | (iv) | Sugar candy (Mishri) |
| (e) | Iron oxide | (v) | Chemical change |
| (f) | Dissolving common salt in water | (vi) | Galvanisation |
