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प्रश्न
Explain the following type of chemical reaction, giving two examples for it:
Displacement reaction
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उत्तर
A displacement reaction occurs when a more active element displaces a less active element from a compound.
Examples:
- Zinc displaces copper from copper sulphate solution.
\[\ce{Zn + CuSO4_{(aq)} -> ZnSO4_{(aq)} + Cu}\] - Iron pieces when added to copper sulphate solution, copper is displaced.
\[\ce{Fe + CuSO4 → FeSO4 + Cu}\]
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संबंधित प्रश्न
CuSO4(aq) + Zn(s) → ZnSO4(aq) + Cu(s) is an example of a decomposition reaction.
\[\ce{Fe2O3 + 2Al -> Al2O3 + 2Fe}\]
The above reaction is an example of a ______.
State two characteristics of the chemical reaction which takes place when dilute sulphuric acid is poured over zinc granules.
Which of the following is a combination and which is a displacement reaction?
- \[\ce{Cl2 + 2KI -> 2KCl + I2}\]
- \[\ce{2K + Cl2 -> 2KCl}\]
What type of reaction is represented by the following equation?
\[\ce{2Na + 2H2O -> 2NaOH + H2}\]
What happens when a piece of iron metal is placed in copper sulphate solution? Name the type of reaction involved.
Give a balanced equation for –
A displacement reaction involving a metal above hydrogen in the activity series with copper [II] sulphate solution
Which of the following is a displacement reaction?
State the change in colour observed in following case mentioning the reason:
A piece of zinc is dipped in ferrous sulphate solution.
The colour of the solution observed after 30 minutes of placing zinc metal in copper sulphate solution is ______.
