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प्रश्न
Select the chemical changes from the following list of changes
Butter turning rancid
उत्तर
Butter turning rancid is a CHEMICAL change as composition changes, a new substance with new properties is formed, irreversible and permanent change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Cutting of trees
Solve this crossword by using the clues that follow.
Across
1. Energy in the form of sunlight is absorbed by the green plants in this process.
4. The reddish-brown substance formed over iron in the presence of oxygen and moisture.
5. This change is permanent and irreversible.
6. The process in which a solid directly changes into gaseous state.
Down
1. It is the change that takes place in case of swinging pendulum of a clock.
2. Occurrence of this is a non-periodic change as well as a natural change.
3. It is a physical change
State whether the following is physical or chemical changes.
shaping a piece of glass —
Tick (√) the correct alternative from the choice given for the following statement.
A substance which can not sublime is
Write true or false
A natural change can also be a desirable change.
A physical change is temporary. Explain.
The rusting of an iron object is called :
Fill in the blank.
The process of a liquid changing into a solid is called ________
Select the chemical changes from the following list of changes
Rotting of eggs.
When a woolen yarn is knitted to get a sweater, the change can be classified as ____________.
