Advertisements
Advertisements
Question
Differentiate between the following:
Electrolytic decomposition and photochemical decomposition.
Advertisements
Solution
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
RELATED QUESTIONS
Name a carbonate which do not decompose on heating.
Name a compound which produces carbon dioxide on heating.
State which type of chemical reaction proceeds with the absorption of heat energy.
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.
Complete the statement by filling in the blank with the correct word:
The reaction of hydrogen burning in oxygen to give a neutral liquid is an example of ________ reaction.
Write an Explanation.
Endothermic reaction
True or False. If false, give the correct answer.
Tarnishing of silver is an example of endothermic 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 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 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.
