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प्रश्न
Photosynthesis is a natural process by which green plants manufacture food in the presence of sunlight.
State the conclusions which can be drawn, to represent photosynthesis as a physical or a chemical change.
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उत्तर
Carbon dioxide and water cannot be obtained back from glucose and oxygen hence it is a chemical change.
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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.
photosynthesis —
Fill in the blank
Heat is ________ by a gas during the process of condensation.
Give the main differences between physical changes and chemical changes.
Which of the following are physical changes and which are chemical changes ?
Rusting of iron
Fill in the blank.
The process of a liquid changing into a solid is called ________
Given reason:
Burning of paper is a chemical change.
Select the chemical changes from the following list of changes
Butter turning rancid
Ice, water and water vapour look different and display different ______ properties but they are ______ the same.
Which of the following is not a physical change?
