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प्रश्न
Give an example of the following chemical changes.
A photochemical reaction involving silver salt.
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उत्तर
\[\ce{2AgNO3->[sunlight] 2Ag + 2NO2 + O2}\]
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संबंधित प्रश्न
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In a................ reaction heat energy is absorbed.
What do you observe? When
Lead nitrate is heated.
Define exothermic and endothermic changes. Give two example in each case.
Chemical reactions may proceed with evolution of heat. Give an example.
Explain the term energy changes in a chemical change or reaction.
Select the correct answer from the options given below:
State the gaseous product formed, when
Two gases one of them neutral combines by absorption of light energy.
Identify the type of chemical reaction given below:
\[\ce{2KClO3 -> 2KCl + 3O2 ^}\]
Give a 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 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 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.
