Advertisements
Advertisements
प्रश्न
Name the following.
The salt obtained when a chemical change takes place on the addition of iron to dilute sulphuric acid.
उत्तर
FeSO4 (Iron Sulphate)
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
Make a list of different types of changes with example.
Fill in the blank.
Growing of a seedling into a plant is _______ change.
State whether the following is physical or chemical changes.
heating a mixture of iron filings and sulphur—
Tick (√) the correct alternative from the choice given for the following statement
Which one of the following is volatile in nature ?
Tick (√) the correct alternative from the choice given for the following statement.
The compound rust is a hydrated oxide of
Ice kept in a beaker, slowly melts and turns into water. The water in the beaker on solidification is freezing turns back to ice. Give four reasons why the change from ice to water and water back to ice is considered a physical change.
Name the following.
The product obtained during a physical change when water converts from a liquid into a solid.
Classify the following changes as physical and chemical changes
A rough piece of wood is sanded and polished resulting in change in texture, Rusting of a iron nail, Painting the grill, Bending a paper clip, Pounding silver into thin plate, Rolling the chappathi dough into thin wire, Occurrence of day and night, eruption of volcano, burning of matchstick, dosa from the batter, blinking of eyelids, occurrence of a thunderstorm, rotation of the earth, formation of eclipses.
| Sr. No. | Physical changes | Chemical changes |
| 1. | ||
| 2. |
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
