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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
State the type of reactions for the following represent and balance the ones that are not balanced.
AgNO3 + NaCl → AgCl + NaNO3
Give an example of double displacement reaction, where a gas is evolved.
Decomposition reactions can occur by heat.
Give two balanced reactions for each.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Mercury [II] oxide
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{2Mg + O2->2MgO}\]
Define the following type of chemical change or reaction with a suitable example.
Decomposition reaction
Give a balanced equation for the following reaction of synthesis involving the formation of:
An acid – from sulphur dioxide gas
Convert nitrogen to ammonia by a direct combination reaction.
Give a balanced equation for thermal decomposition of ammonium dichromate
Differentiate between the following:
Decomposition reaction and a double decomposition reaction.
