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प्रश्न
Name the following.
The gaseous product of the chemical change which takes place during respiration in living organisms.
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उत्तर
CO2 carbon dioxide.
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संबंधित प्रश्न
What role does energy play in initiating a chemical change ?
State whether the following is physical or chemical changes.
growing of a piglet into a pig —
True or false
In a physical change no net energy change is involved.
Tick the most appropriate answer.
Photosynthesis requires
Write true or false
Decomposition of leaves is a fast change.
What is a chemical change ? Give two examples of chemical changes.
Classify the following as a physical or a chemical change.
Boiling of water
Classify the Following as a Physical Or a Chemical Change.
Making of a Sugar Solution
Classify the following as physical or chemical properties
Metallic sodium is soft enough to be cut with a knife.
Fill in the blanks in the following statements using the words given in the box.
| rusted, colourful, substance, chemical, physical, reversible, iron oxide, object |
- Making sugar solution is a ______ change.
- A physical change is generally ______.
- Grinding of wheat grain changes its size. It is a ______ change.
- Iron benches kept in lawns and gardens get ______. It is a ______ change because a new ______ is formed.
