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प्रश्न
Complete the following statement.
On heating, hydrated copper sulphate changes its colour from ________ to __________.
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उत्तर
On heating, hydrated copper sulphate changes its colour from Blue to white.
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संबंधित प्रश्न
Identify the endothermic and exothermic reaction.
\[\ce{2KClO_{3(s)}->[\Delta] 2KCl_{(s)} + 3O2}\]
Identify the endothermic and exothermic reaction.
\[\ce{CaO + H2O -> Ca(OH)2 + Heat}\]
Why energy is involved in a chemical change?
State the effects of endothermic and exothermic reactions on the surroundings.
What do you observe? When
Lead nitrate is heated.
State which type of chemical reaction proceeds with the absorption of heat energy.
Explain the term energy changes in a chemical change or reaction.
Give an example with a balanced equation, of the following reaction:
exothermic reaction
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.
