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प्रश्न
Define a thermal dissociation reaction with a suitable example.
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उत्तर
“A decomposition reaction — in which a substance dissociates — into two or more simpler substances on the application of heat.”
\[\ce{NH4Cl⇌[heat][cool]NH3 + HCl}\]
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संबंधित प्रश्न
Explain, giving one example of the following chemical changes:
Double decomposition
Explain, giving one example of the following chemical change:
Thermal dissociation
Decomposition brought about by heat is known as thermal decomposition. What is the difference between thermal dissociation and thermal decomposition?
Select the correct salt from list II which on thermal decomposition exhibits the change in colour from list I.
| List I | List II |
| 1. Light green to black | A: Copper carbonate |
| 2. White to yellow [heated state] | B: Hydrated Copper sulphate |
| 3. Blue to black | C: Copper nitrate |
| 4. Orange to green | D: Ammonium dichromate |
| 5. Blue to white | E: Zinc nitrate |
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{Cl2 + 2Kl->2KCl + l2}\]
Give a balanced equation for thermal decomposition of calcium hydroxide
Define the term – double decomposition – neutralization reaction.
Complete the statement by filling in the blank with the correct word:
Direct combination reaction of sulphur dioxide with water gives ________.
Complete the statement by filling in the blank with the correct word:
Formation of hydrogen chloride from hydrogen and chlorine is an example of __________.
Give a balanced equation for the following type of reaction:
A soluble salt of lead formed from an insoluble base by double decomposition – neutralization.
