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प्रश्न
Differentiate between the following:
Thermal decomposition & thermal dissociation.
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उत्तर
Thermal decomposition and thermal dissociation.
- Thermal decomposition: “A chemical reaction in which a compound decomposes into two new substances by heat.” It is not a reversible reaction.
\[\ce{CaCO3->[\Delta]CaO + CO2}\] - Thermal dissociation: “Is decomposition of a compound into two or more new substances by heat energy.” It is a reversible reaction.
\[\ce{NH4Cl⇌[heat][cool]NH3 + HCl}\]
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संबंधित प्रश्न
Complete the following statement.
In the type of reaction called_______________, two compounds exchange their positive and negative radicals.
Explain, giving one example of the following chemical changes:
Double decomposition
Explain, giving one example of the following chemical change:
Thermal dissociation
State the type of reactions for the following represent and balance the ones that are not balanced.
KNO3 + H2SO4 → HNO3 + KHSO4
Complete the table given below.
| Heat on Copper Nitrate | Colour of acidic gas evolved |
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{AgNO3 + HCl->AgCl + HNO3}\]
Give a balanced equation for a direct combination reaction involving:
Two elements – one of which is a neutral gas and the other a monovalent metal
Give a balanced equation for thermal decomposition of mercury [II] oxide
Define a displacement reaction with a suitable example.
Give a reason why zinc displaces hydrogen from dilute sulphuric acid but copper does not.
