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प्रश्न
Grinding of wheat grain changes its size. It is a ____________ change.
उत्तर
Grinding of wheat grain changes its size. It is a physical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
Classify the changes involved in the following process as physical or chemical changes:
Photosynthesis
Choose the most appropriate answer.
Rising and setting of the sun at a given place is a
State four differences between physical and chemical changes.
Write true or false
Decomposition of leaves is a fast change.
State the various conditions that favour the process of evaporation.
Fill in the blank.
The reaction in which energy is evolved is called
State what is meant by the term – interconversion of matter. Is interconversion of matter a physical change or a chemical change.
Name the following.
A form of energy required for a chemical change.
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 |
