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प्रश्न
State which of the substance given below evolve oxygen gas on thermal decomposition.
Anhydrous copper sulphate
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उत्तर
Anhydrous copper sulphate [CuSO4]
On thermal decomposition, Anhydrous copper sulphate is evolved oxygen
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संबंधित प्रश्न
Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.
(a) What is synthesis?
(b) What kind of chemical reaction is synthesis? Support your answer by an example.
What is a double displacement reaction?
What is a decomposition reaction?
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 |
Give a balanced equation for a direct combination reaction involving:
Two compounds – resulting in the formation of a weak acid
Give a balanced equation for the following reaction of synthesis involving the formation of:
A salt – from a trivalent metal and a coloured gas.
Give a balanced equation for thermal decomposition of lead nitrate
Give a balanced equation for thermal decomposition of mercury [II] oxide
Convert an insoluble base
