Advertisements
Advertisements
प्रश्न
Tick the most appropriate answer.
Rising and setting of the sun at a given place is a
विकल्प
periodic change
undesirable change
physical change
reversible change
Advertisements
उत्तर
periodic change.
APPEARS IN
संबंधित प्रश्न
Which of the following are chemical changes?
- Growth of a plant
- Rusting of iron
- Mixing of iron fillings and sand
- Cooking of food
- Digestion of food
- Freezing of water
- Burning of candle
Write true or false for the statement.
Dissolving of solute in a solvent and rusting of iron are both physical changes.
Is burning a physical change or a chemical change? Why?
Classify the following as physical or chemical change :
Growth of a plant
Which of the following are physical changes and which are chemical changes ?
Define a chemical change. Give two examples of the above changes.
Give the reason why the following is considered as chemical changes.
A bright light is seen evolved when a strip of magnesium is heated.
What type of change is colouring of a paper?
When solute is dissolved in a solvent it forms a solution.
Keeping a stone in sunlight for few hours is ______.
