Question

define 1) displacement reaction
2) double displacement reaction
3) decomposition reaction​

Answer 1

Answer:

displacement reaction

those reaction in which one element takes the place of another element in a compound

double displacement reaction

those reaction in which two compound react by the exchange of ions to form two new compounds

displacement reaction

those reaction in which a compound splits into two or more simpler substances

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Answer 2

Answer:

Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. Example : Reaction of iron nails with copper sulphate solution.

A double displacement reaction, also known as a double replacement reaction or metathesis, is a type of chemical reaction where two compounds react, and the positive ions (cation) and the negative ions (anion) of the two reactants switch places, forming two new compounds or products