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प्रश्न
Classify the following as a physical or a chemical change.
Burning of coal
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उत्तर
Chemical change
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संबंधित प्रश्न
Tick the most appropriate answer
2. Melting of ice is a
- reversible change
- irreversible change
- chemical change
- none of these
Photosynthesis cannot take place at night.
What is a chemical change ? Give two examples of chemical changes.
Given reason:
Burning of paper is a chemical change.
Name the following:
The type of change physical or chemical involved – ‘when a substance undergoes a change in state, colour or size’.
Change is the law of nature which occurs in everyday life.
State when a substance [i.e. matter] undergoes a kind of change.
Select the chemical changes from the following list of changes
Breaking of glass
Sublimation of Iodine is a ______.
______ is the Universal Solvent.
State whether the following statement is true or false:
Anaerobic bacteria digest animal waste and produce biogas.
