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प्रश्न
State whether the following is physical or chemical changes.
Slaking of lime —
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उत्तर
chemical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Burning of paper and wood
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
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Write true or false
A natural change can also be a desirable change.
Name two reversible changes.
Explain the term – ‘sublimation’. Is sublimation of naphthalene – a physical or a chemical change. Give reasons.
Select the chemical changes from the following list of changes
The carbon cycle.
State whether the following statement is true or false:
Stretching of rubber bands is not a physical change.
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
- Making sugar solution is a ______ change.
- A physical change is generally ______.
- Grinding of wheat grain changes its size. It is a ______ change.
- Iron benches kept in lawns and gardens get ______. It is a ______ change because a new ______ is formed.
Cutting a log of wood into pieces is a chemical change.
