Advertisements
Advertisements
प्रश्न
Match the items of Column I with the items of Column II.
| Column I | 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 |
Advertisements
उत्तर
| Column 1 | Column II | ||
| (a) | Large crystals | (iv) | Sugar candy (Mishri) |
| (b) | Depositing a layer of zinc on iron | (vi) | Galvanisation |
| (c) | Souring of milk | (v) | Chemical change |
| (d) | Carbon dioxide | (i) | Turns lime water into milky |
| (e) | Iron oxide | (iii) | Rust |
| (f) | Dissolving common salt in water | (ii) | Physical change |
APPEARS IN
संबंधित प्रश्न
Choose the most appropriate answer.
Rising and setting of the sun at a given place is a
Tick the most appropriate answer.
3. Physical changes are
- permanent.
- periodic,
- temporary
- irreversible.
Ripening of fruits is a desirable change.
State one instance where water undergoes a physical change and one in which it undergoes a chemical change.
Classify the following as physical or chemical change :
Growth of a plant
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
Classify the following as a physical or a chemical change.
Melting of wax
Given reason:
Cutting of a cloth piece is a physical change, though it cannot be reversed.
Assertion: The explosion of fire cracker is a physical change.
Reason: A physical change is a reversible change.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
