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    Chemistry
    Grade-10
    Easy

    Question

    What is the generic equation for a double replacement reaction?

    1. AB + CD → AD + CB
    2. AB + CD → DA + CB
    3. AB + CD → A + BC
    4. AB + CD → D + CBA

    hintHint:

    AB + CD rightwards arrow AD + CB

    The correct answer is: AB + CD → AD + CB

      The word displace means to push out. A more reactive element can displace a less reactive element out of its compound during a chemical reaction, this reaction is termed as displacement reaction.
      Double displacement reaction can be termed as when two displacements take place in a reaction.
      The generic equation for a double replacement reaction:
      AB + CD rightwards arrow AD + CB
      Here B is replaced by D and D is replaced by B. AD & CB, two completely new compounds are formed.

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