Advertisements
Advertisements
प्रश्न
Fill in the blank with the appropriate word of the statement given below:
If a change is permanent and irreversible it is considered a _________ change.
Advertisements
उत्तर
If a change is permanent and irreversible it is considered a chemical 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.
State four differences between physical and chemical changes.
State whether the following is physical or chemical changes.
water cycle in nature —
Write true or false
Burning of paper and formation of curd are reversible changes.
Classify the following as a physical or a chemical change.
Burning of paper
Select the chemical changes from the following list of changes
Glowing of an electric bulb.
Analogy:
Melting of ice: Physical change.
Popping of popcorn: ______.
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Grinding of wheat grain changes its size. It is a ____________ change.
