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प्रश्न
State whether the following statement is true or false. If false write the correct statement.
Melting of ice is an exothermic, irreversible chemical change.
पर्याय
True
False
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उत्तर
False.
Correct Statement: Melting of ice is an endothermic, reversible physical change.
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संबंधित प्रश्न
Classify the following as chemical or physical change:
Melting of butter in a pan
Write true or false for the statement
Decomposition of leaves is a fast change.
Ripening of fruits is a desirable change.
Write true or false
Deforestation is a man-made change.
Change is the law of nature and occurs in our everyday life, at all times and in all places. Differentiate between the following change with a suitable example.
Desirable and undesirable change.
Differentiate between a physical change and a chemical change with reference to – Energy change taking place during the respective change.
State the observations seen, when milk in a dish is kept aside for a few hours or more. Is the change which occurs – a physical change or a chemical change. Give reasons.
Give a reason why rusting of iron is a chemical change but, the magnetization of iron is a physical change.
Water is known as a universal solvent. Why?
______ is the Universal Solvent.
