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प्रश्न
Name a metallic oxide which on thermal decomposition is reduced to metal.
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उत्तर
Metal oxide on thermal decomposition reduces to metal:
\[\ce{\underset{\text{mercury (II) oxide}}{2HgO}->[\Delta]\underset{\text{metal mercury}}{2Hg} + O2}\]
\[\ce{2Ag2O->[\Delta]4Ag + O2}\]
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संबंधित प्रश्न
Decomposition reactions can occur by electricity
Give balanced reactions.
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 |
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc carbonate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Ammonium dichromate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Trilead tetroxide
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 a thermal dissociation reaction with a suitable example.
Convert a soluble base to their respective soluble salts by neutralization reaction.
Complete the statement by filling in the blank with the correct word:
Formation of hydrogen chloride from hydrogen and chlorine is an example of __________.
Complete the statement by filling in the blank with the correct word:
The neutral gas evolved when lead nitrate undergoes thermal decomposition is _________.
