Metallic oxides of zinc, magnesium and copper were heated with the following metals.

Metal Zinc Magnesium Copper

Zinc oxide

Magnesium oxide

Copper oxide

In which cases will you find displacement reactions taking place?

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Solution

Magnesium is the most reactive metal among all the three. So, it can displace both copper and zinc from their oxides.

Zinc is reactive than copper but less reactive than magnesium. So, it can displace copper from its oxide but not magnesium.

Copper is least reactive among all the three. So, copper does not show displacement reaction.

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\begin{matrix} M e t a l & Z i n c & M a g n e s i u m & C o p p e r Z i n c o x i d e & - & - & - M a g n e s i u m o x i d e & - & - & - C o p p e r o x i d e & - & - & - \end{matrix}

On the basis of the reactivity series of metals, predict how these metals will react with each of the following salt solutions:

Metals: magnesium, zinc, copper, iron, and potassium

Salt solutions: magnesium sulphate, zinc sulphate, copper sulphate, iron sulphate,and potassium sulphate

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