Question

2) Give an example for double displacement reaction and Explain the reaction according to the particular Example.
7) What type of reaction takes place when Iron nail is dipped in Copper Sulphate Solution? Explain.
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Answer 1

Answer:

2) A double displacement reaction is a type of chemical reaction where two compounds react, and positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products. For example, Na2S+2HCl→2NaCl+H2S.

7)Chemical reaction of iron nail with copper sulphate solution in water. Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal

Explanation:

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Answer 2

Answer:

A double displacement reaction is a type of reaction in which two reactants exchange ions to form two new compounds. Many double displacement reactions occur between ionic compounds that are dissolved in water. A double replacement reaction is represented by the general equation.

AB + CD → AD + CB

Here are some examples of double displacement reaction:

• AgNO 3 + NaCl → AgCl + NaNO3

• 2NaCl + CaSO4 → Na2SO4+ CaCl2

• H2SO4 + 2LiOH ⇌ Li2SO4 + 2H2O

• AgNO3 + HCl ⇌ AgCl + HNO3

• Pb(NO3)2 + 2NaCl ⇌ 2NaNO3+ PbCl2

• HCl + NaOH → NaCl + H2O

• Al2(SO4)3 + 6NH4OH → 2Al(OH)3 + 3(NH4)2SO4

The Chemical reaction of the iron nail with copper sulphate solution in water. Iron displaces copper ions from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal.