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प्रश्न
Classify the following as a physical or a chemical change.
Drying of wet clothes
एक शब्द/वाक्यांश उत्तर
उत्तर
Physical change
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संबंधित प्रश्न
Match the columns
column A | coulmn B |
1. A change which cannot be easily reversed | a. man-made change |
2.A change that repeats itself at regular intervals | b. chemical change |
3. A change that is made by humans | c. physical change |
4. A change in which the original substance cannot be obtained |
d. periodic change |
5. A change where no new substance is formade | e. irreversible change |
f. slow change |
Write true or false for the statement.
Deforestation is a man-made change
Dissolving salt in water is a reversible change.
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
Write true or false
Rusting of iron is a chemical change.
Tick the most appropriate answer.
Physical changes are
Water is known as a universal solvent. Why?
Give two examples for each of the following cases:
Physical changes are reversible.
Which of the following is not a physical change?
Adding sugar to milk is a physical change.