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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
Multiple choice:
The reaction BaCl2(aq) + H2SO4(aq) → BaSO4(s) + 2HCl(aq) is
Give an example of double displacement reaction, where a gas is evolved.
State which of the substance given below evolve oxygen gas on thermal decomposition.
Ammonium dichromate
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 the following type of chemical change or reaction with a suitable example.
Double decomposition reaction
Convert nitrogen to ammonia by a direct combination reaction.
Convert hydrogen to hydrogen chloride by a direct combination reaction.
Give a reason why zinc displaces hydrogen from dilute sulphuric acid but copper does not.
Explain the term double decomposition precipitation reaction.
Differentiate between the following:
Decomposition reaction and a double decomposition reaction.
