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प्रश्न
Define the following type of chemical change or reaction with a suitable example.
Double decomposition reaction
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उत्तर
Double decomposition reaction:
“Those reactions in which two compounds react by an exchange of ions to form two new compounds are called double displacement reactions”.
\[\ce{\underset{\text{silver nitrate}}{AgNO3} + \underset{\text{sodium chloride}}{NaCl}->\underset{\text{white ppt. (silver chloride)}}{AgCl} + \underset{\text{sodium nitrate}}{NaNO3}}\]
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संबंधित प्रश्न
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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 |
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Trilead tetroxide
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc nitrate
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 thermal decomposition of lead nitrate
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