Advertisements
Advertisements
प्रश्न
Give an example of the following chemical changes.
An exothermic and an endothermic reaction involving carbon as one of the reactants.
Advertisements
उत्तर
Exothermic reaction:
When carbon burns in oxygen to form carbon dioxide, a lot of heat is produced.
C + O2 → CO2 + Heat
Endothermic reaction:
When carbon is heated with sulphur at high temperature, liquid carbon disulphide is formed.
\[\ce{C + 2S ->[\Delta] CS2}\]
APPEARS IN
संबंधित प्रश्न
What do you observe when Ammonia is brought in contact of hydrogen chloride.gas.
Define exothermic reactions. Give two examples of each.
Why energy is involved in a chemical change?
Name a carbonate which do not decompose on heating.
What do you observe? When
Lead nitrate is heated.
State which type of chemical reaction proceeds with evolution of heat energy.
Write an Explanation.
Endothermic reaction
Respiration is a ______ change.
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.
