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प्रश्न
Classify the following reaction into Exothermic and Endothermic reactions.
Magnesium ribbon when burned in air, it forms magnesium oxide.
पर्याय
Exothermic reaction
Endothermic reaction
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उत्तर
Exothermic reaction
संबंधित प्रश्न
FILL IN THE BLANK
In a................ reaction heat energy is absorbed.
Give scientific reason.
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 an example of the following chemical changes.
A photochemical reaction involving silver salt.
Name a carbonate which do not decompose on heating.
What do you observe? When
Lead nitrate is heated.
Define exothermic and endothermic changes. Give two example in each case.
State which type of chemical reaction proceeds with the absorption of heat energy.
State the following reaction whether heat is evolved or absorbed –
Two neutral gases combine to give a basic gas.
Give an example of an endothermic reaction.
Chemical reactions may proceed with absorption of heat. Give an example.
Explain the term energy changes in a chemical change or reaction.
Give an example with a balanced equation, of the following reaction:
electrochemical reaction
Differentiate between the following:
Electrolytic decomposition and photochemical decomposition.
Give examples of the endothermic process.
Give examples for the exothermic process.
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.
Give scientific reason.
While preparing dilute sulphuric acid from concentrated sulphuric acid in the laboratory, the concentrated sulphuric acid is added slowly to water with constant stirring.
