Q.. When is a chemical reaction considered a double displacement reaction ? Explain giving example.State a difference between displacement and double displacement reaction.
Answers
Answer:
1) When is a chemical reaction considered a double displacement reaction ?
A double displacement reaction occurs when there is an exchange of ions between the reactants (compounds ). According to reactivity series, the more reactive element DISPLACES the less reactive element in a compound.
2) State a difference between displacement and double displacement reactions ?
Displacement reaction is a chemical change, in which a more active element displaces a less reactivate element from its salt solution. Double displacement reaction is a chemical change in which two compounds exchange their radicals with each other to form new compounds. Example - Mg + H2So4 ---> MgSo4 + H2.
Step-by-step explanation:
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⭕A double displacement reaction occurs when there is an exchange of ions between the reactants (compounds ).⭕
➡️BaCl2 + H2SO4 ----> BaSO4 + 2HCl⬅️
⭕In displacement reaction
In displacement reactionAccording to reactivity series, the more reactive element DISPLACES the less reactive element in a compound.
➡️Fe + CuSO4 ---> FeSO4 + Cu⬅️
✴Whereas in double displacement reaction, there is an EXCHANGE OF IONS, it's like BOTH THE ELEMENTS displace each other. In simple terms, exchange of ions.✴