Question

Chapter-2, Science, NCERT Class 8th
Question- What is displacement reaction?
Question- What happens when metal Iron is added to copper sulphate solution?



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Answer 1

Answer:

1. Displacement reaction - A reaction in which a more reactive metal displaces a less reactive metal is called displacement reaction. example - Fe + - + Cu. 4. Double displacement reaction - A reaction in which there is an exchange of ions between reactants is called double displacement reaction. example - + - + 2NaCl.

2.Iron displaces copper ions from an aqueous solution of copper sulphate.

Explanation:

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Answer 2

Answer:

• Displacement reaction is the chemical reaction in which a more reactive element displaces a less reactive element from its compound .
• Iron displaces copper irons from an aqueous solution of copper sulphate. It is a single displacement reaction of one metal by another metal. In this reaction metallic iron is converted into ferrous iron and cupric iron is converted into metallic copper