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प्रश्न
True or false
Is the process of digestion a physical change?
पर्याय
True
False
उत्तर
false
APPEARS IN
संबंधित प्रश्न
Write true or false for the statement.
Dissolving of solute in a solvent and rusting of iron are both physical changes.
State one instance where water undergoes a physical change and one in which it undergoes a chemical change.
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
Given reason:
Freezing of water to ice and evaporation of water are physical changes.
Give three reasons why melting of wax, is considered a physical change while burning of a candle, a chemical change.
Ammonium chloride is also a sublimable solid. Give a reason why the sublimation of ammonium chloride involves a physical and a chemical change.
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
Name the following:
The final product of the physical change involved during the ‘melting of a piece of wax’.
Give a reason why – Rusting of iron is a chemical change but, the magnetization of iron is a physical change.
Making sugar solution is a ____________ change.
