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प्रश्न
Explain, giving one example for each of the following chemical changes:
Displacement
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उत्तर
Displacement
It is a chemical change in which a more active element displaces a less active element from its salt solution.
CuSO4 + Zn → ZnSO4 + Cu
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संबंधित प्रश्न
Explain the types of reaction with reference to oxygen and hydrogen. Illustratre with examples.
Complete the following statement.
In the type of reaction called_______________, two compounds exchange their positive and negative radicals.
Complete the table given below.
| Heat on Copper Nitrate | Colour of acidic gas evolved |
State which of the substance given below evolve oxygen gas on thermal decomposition.
Zinc nitrate
State which of the substance given below evolve oxygen gas on thermal decomposition.
Anhydrous copper sulphate
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{SO2 + 2H2O + Cl2->2HCl + H2SO4}\]
The reaction can be classified as:
State which of the following type, take place in the reaction is given below.
\[\ce{AgNO3 + HCl->AgCl + HNO3}\]
Convert nitrogen to ammonia by a direct combination reaction.
Explain the term double decomposition precipitation reaction.
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.
