An element X displaces iron from the aqueous solution of iron sulphate .List your observations if the element X is treated with the aqueous solutions of copper sulphate, zinc sulphate and silver nitrate . based on the observations arrange X,Zn,Cu and Ag in increasing order of their reactivities.
Answers
Magnesium is the metal X that can displace iron from its aqueous solution
Mg>Zn>Cu>Ag
Explanation:
Reactivity series is the table in which metals are arrange in the order of their reactivity with least reactive metal at base and most reactive at the top.
The table of reactivity series is attached along with the answer.
Answer:
An element ‘X‘ displaces iron from the
aqueous solution of iron sulphate. A more
reactive metal displaces a less reactive
metal from its salt solution. It means
element ‘X‘ is more reactive than iron.
X + FeSO4(aq) → XSO4(aq)
+ Fe
The pale green colour of FeSO4 will fade
away slowly when element ‘X‘ is treated
with the aqueous solutions of CUSO4.
X + CuSO4(aq) → XSO4(aq)
+ Cu
Copper is less reactive than iron, iron is
less reactive than X. It means copper is less
reactive than X.
The blue colour of CuSO4 will fade away
slowly.
The deposits of metal ‘X‘ will be seen on
the copper strip.
X will be able to displace sliver from its
silver nitrate solution as silver is less
reactive than copper even.
The increasing order of reactivities of these
metals X, Zn, Cu and Ag is as :
Ag < Cu < Zn < X
Explanation:
(1) X + FeSO4(aq) → XSO4(aq)
+ Fe
(Pale green) (Colourless)
(2) X + CuSO4(aq) → XSO4(aq)
+ Cu
(Blue) (Colourless)
(3) X + ZnSO4(aq) → XSO4(aq)
+Zn
(4) X + AgNO3(aq) → XNO3(g)
+ Ag
(Colourless) (Colourless)
X displaces iron, iron is more reactive that
copper and silver that is why X is highly
reactive metal of all given metals.