Advertisements
Advertisements
Question
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.
Options
exothermic
endothermic
Advertisements
Solution
The reaction of hydrogen burning in oxygen to give a neutral liquid is an example of exothermic reaction.
APPEARS IN
RELATED QUESTIONS
What do you observe when Ammonia is brought in contact of hydrogen chloride.gas.
Define endothermic reactions. Give two examples of each.
Give an example of the following chemical changes.
A photochemical reaction involving silver salt.
Why energy is involved in a chemical change?
Give an example with a balanced equation, of the following reaction:
exothermic reaction
Differentiate between the following:
Electrolytic decomposition and photochemical decomposition.
Classify the following reaction into Exothermic and Endothermic reactions.
Magnesium ribbon when burned in air, it forms magnesium oxide.
Assertion: A drop of petrol when touched with finger gives a chill feeling.
Reason: The above phenomenon is an endothermic one.
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 |
Complete the following table:
| Chemical Reactions | Name reaction type |
| \[\ce{C(s) + O2(g) -> CO2(g)}\] | (a) ________ |
| \[\ce{Zn(s) + CuSO4(aq) ->}\] (b) _________ | Displacement reaction |
| \[\ce{2Cu(s) + O2(g) ->[heat] 2CuO(s)}\] | (c) _________ |
| \[\ce{C(s) + 2H2(g) -> CH4(g)}\] | (d) _________ |
| \[\ce{CaO(s) + H2O(l) -> Ca(OH)2(aq) + heat}\] | (e) _________ |
| \[\ce{CaCO3(s) + Heat ->}\] (f) _________ | Endothermic Reaction |
