Advertisements
Advertisements
Question
State which type of chemical reaction proceeds with the absorption of heat energy.
Solution
Endothermic reactions.
APPEARS IN
RELATED QUESTIONS
How will you obtain Ammonia from nitrogen.
Also give balanced equations for the reactions
Identify the endothermic and exothermic reaction.
\[\ce{CaCO_{3(s)}->[\Delta] CaO_{(s)} + CO2}\]
Give an example of the following chemical changes.
A photochemical reaction involving silver salt.
Name a nitrate which produces oxygen as the only gas.
Write an Explanation.
Endothermic reaction
Respiration is a ______ change.
True or False. If false, give the correct answer.
Tarnishing of silver is an example of endothermic change.
Match the following:
Colum I | Column II | ||
1. | Alloying | a. | Exothermic change |
2. | Crystallization | b. | Periodic change |
3. | Soap powder + water | c. | Mixing of molten solids |
4. | Seasonal changes | d. | Pure solid |
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.