Advertisements
Advertisements
प्रश्न
Select the correct answer from the choice given below to complete the sentence
A change in which a substance retains its identity is a
______ change.
पर्याय
physical
chemical
Advertisements
उत्तर
A change in which a substance retains its identity is a physical 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 short answer.
What are man-made changes ?
State whether the following is physical or chemical changes.
shaping a piece of glass —
Fill in the blank
Changes that occur in nature are called ______
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Fill in the blank with the correct word of the statement given below:
Sublimation involves a __________ change.
Give a reason why – Addition of zinc nitrate to water is a physical change but, the addition of zinc to dilute nitric acid is a chemical change.
Give the reason why the following is considered as chemical changes.
An iron nail kept open in the atmosphere rusts.
Keeping a stone in sunlight for few hours is ______.
Explain the characteristics of physical change with examples.
