what is double DISPLACEMENT REACTIONS??
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what is double DISPLACEMENT REACTIONS??
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Answer:
Double displacement reaction
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A chemical reaction in which there is an exchange of ions between reactants to give new substances is called a double displacement reaction. The two reactants are generally water soluble.
such double displacement reaction take place with the :
1. Formation of a precipitate.
2. evolution of gas , or
3. change in colour.
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