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प्रश्न
Classify the following as a physical or a chemical change.
Butter getting rancid
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उत्तर
Chemical change
APPEARS IN
संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
Fill in the blank.
Heat is .................... by a gas during the process of condensation.
State whether the following is physical or chemical changes.
lightning —
State whether the following is physical or chemical change.
Digestion of food —
Tick the most appropriate answer.
Photosynthesis requires
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.
Which of the following are physical changes and which are chemical changes ?
State why addition of sodium chloride to water is considered a physical change, while addition of dilute sulphuric acid to zinc is considered a chemical change.
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.
What type of energy changes is associated when ice melts?
