Advertisements
Advertisements
प्रश्न
Classify the following as chemical or physical change:
Boiling of water to form steam.
विकल्प
Chemical change
Physical change
Advertisements
उत्तर
Physical change
Explanation:
Boiling water to produce steam is a physical change since it merely changes its condition from liquid water to steam (gaseous) without changing its chemical composition.
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
When a candle burns, wax melts. Melting of wax is a ________ change.
What is a physical change ? Give two examples of physical changes.
Classify the following as a physical or a chemical change.
Burning of coal
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
Explain the term – ‘sublimation’. Is sublimation of naphthalene – a physical or a chemical change. Give reasons.
Give four reasons why the burning of a magnesium ribbon in the air is considered a chemical change.
Give the reason why the following is considered as chemical changes.
A bright light is seen evolved when a strip of magnesium is heated.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
What type of energy changes is associated when ice melts?
When solute is dissolved in a solvent it forms a solution.
