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प्रश्न
True or False. If false, give the correct answer.
Tarnishing of silver is an example of endothermic change.
पर्याय
True
False
उत्तर
False
Tarnishing of silver is an example of change.
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संबंधित प्रश्न
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In a................ reaction heat energy is absorbed.
Explain the term with examples.
Endothermic reaction
Why energy is involved in a chemical change?
What do you observe? When
Lead nitrate is heated.
State which type of chemical reaction proceeds with evolution of heat energy.
State the following reaction whether heat is evolved or absorbed –
Two neutral gases on passage through an electric are given nitric oxide.
Chemical reactions may proceed with absorption of heat. Give an example.
Classify the following reaction into Exothermic and Endothermic reactions.
Magnesium ribbon when burned in air, it forms magnesium oxide.
Give scientific reasons.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
Give scientific reasons.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
