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Answers
- Fe(s) + CuSO4(aq) -> Cu(s) + FeSO4(aq)
When an iron nail is dipped in copper sulphate solution, a brown coating of copper is formed on the surface of iron and the colour of copper sulphate solution changes from blue to light green. This reaction shows that iron is more reactive than copper as it displaces copper from its solution and iron passes into solution as Fe2+ ions and ferrous sulphate solution is formed.
2.sodium and chlorine respond together to generate a substance that is familiar to nearly everybody in the globe that is sodium chloride, or table salt, or common salt.
2Na(s) + Cl2(g) → 2NaCl(s)
3. Defination-
A neutralization reaction can be defined as a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products.
In a neutralization reaction, there is a combination of H+ ions and OH– ions which form water. A neutralisation reaction is generally an acid-base neutralization reaction.
Examples-
Neutralization Reaction Equation
acid + base(alkali) → salt + water
Equation - Neutralization Reaction
Neutralization Reaction Equation
Neutralization Reaction Examples
Formation of Sodium Chloride (Common Salt):
HCl + NaOH → NaCl + H2O
Uses-
Farmers make use of calcium oxide (lime) to neutralize acid soils.
neutralization reaction in daily life-(uses)
Using vinegar to cure wasp stings as it is alkaline in nature.
4.Defination-
A displacement reaction is the one wherein the atom or a set of atoms is displaced by another atom in a molecule. For instance, when iron is added to a copper sulphate solution, it displaces the copper metal.
A + B-C → A-C + B
Examples-
Chlorine + sodium bromide → sodium chloride + bromineCl2(aq) + 2NaBr(aq) → 2NaCl(aq) + Br2(aq)
The copper metal displaces silver from Silver Nitrate solution.Cu(s) + 2AgNo3(aq) → 2Ag(s) + Cu(NO3)2(aq)
Uses-
Some applications of displacement reactions are thermite welding, steel making, extraction of metals, and relief from acid indigestion