Advertisements
Advertisements
प्रश्न
Differentiate between the following:
Electrolytic decomposition and photochemical decomposition.
Advertisements
उत्तर
Electrolytic decomposition and photochemical decomposition:
- Electrolytic decomposition : “A chemical reaction which takes place with absorption of electrical energy”
\[\ce{\underset{\text{collected at}}{2H2O}->[electric][current]\underset{\text{cathode}}{2H2} + \underset{\text{anode}}{O2}}\] - Photochemical decomposition: “A chemical reaction which takes place with the absorption of light energy”
\[\ce{H2 + Cl2->[sunlight]2HCl}\]
APPEARS IN
संबंधित प्रश्न
Define endothermic reactions. Give two examples of each.
What do you observe? When
Lead nitrate is heated.
Complete the statement by filling in the blank with the correct word:
The element molybdenum used in the reaction of nitrogen with hydrogen at elevated temperatures is an example of a ________.
Complete the statement by filling in the blank with the correct word:
The reaction of coke with steam to give water gas is an example of an __________ reaction.
Chemical reactions may proceed with absorption of heat. Give an example.
Select the correct answer from the options given below:
State the gaseous product formed, when
An exothermic reaction takes place between ammonia and neutral gas.
Write an Explanation.
Endothermic reaction
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.
