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प्रश्न
Give a balanced equation for the following type of reaction:
A thermal decomposition reaction of a salt – which results in the formation of nitrogen gas.
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उत्तर
Thermal decomposition of salt with the formation of nitrogen gas.
\[\ce{\underset{\text{ammonium dichromate (orange)}}{(NH4)2Cr2O7}->[\Delta]\underset{\text{chromic oxide (green)}}{Cr2O3} + 4H2O + \underset{\text{nitrogen gas}}{N2}}\]
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संबंधित प्रश्न
The reaction of iron nail with copper sulphate solution is ______ reaction.
(a) Define the neutralization reaction with an example.
(b) Give a balanced equation for this reaction.
(c) Give three applications of neutralization reactions.
State the type of reactions for the following represent and balance the ones that are not balanced.
2KClO3→ 2KCl + 3O2
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 |
Define the following type of chemical change or reaction with a suitable example.
Direct combination reaction or synthesis
Define the following type of chemical change or reaction with a suitable example.
Double decomposition reaction
Convert nitrogen to ammonia by a direct combination reaction.
Give an example of a photochemical decomposition reaction.
Complete the statement by filling in the blank with the correct word:
The neutral gas evolved when lead nitrate undergoes thermal decomposition is _________.
Chemical reaction in which reactants react to form products and the products formed react with each other directly to form the original reactants back is known as ______ reaction.
