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प्रश्न
Which of the following are physical changes and which are chemical changes ?
पर्याय
Physical change
Chemical change
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उत्तर
Burning of magnesium wire – Chemical change
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Rusting of almirah
Classify the following changes as physical or chemical:- melting of a solid (wax)
What are reversible and irreversible changes ? Give one example for each.
State whether the following is physical or chemical changes.
water cycle in nature —
State the various conditions that favour the process of evaporation.
Define a chemical change. Give two examples of the above changes.
Fill in the blank.
The process of a liquid changing into a solid is called ________
Select the chemical changes from the following list of changes
Respiration in mammals.
Natural changes which take place in nature on their own, are beyond the control of human being.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
