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प्रश्न
State whether the following is physical or chemical changes.
photosynthesis —
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उत्तर
chemical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Passing of electric current through water, and water breaking down into hydrogen and oxygen gases.
Write true or false
Melting of ice is a physical change.
Which of the following are physical changes and which are chemical changes ?
Differentiate between a physical change and a chemical change with reference to – Nature of change is temporary and reversible or permanent and irreversible.
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.
State whether the following statement is true or false. If false write the correct statement.
Melting of butter and wax are examples of chemical changes.
Select the chemical changes from the following list of changes
Preparation of carbon dioxide from calcium carbonate & dilute hydrochloric acid.
Grinding of wheat grain changes its size. It is a ____________ change.
Give two examples for the following case:
Physical changes which are not reversible
Give an example to justify the statement that physical changes can be reversible as well as irreversible.
