Why zinc is more reactive than copper?

zinc is larger than copper, thus able to lose electrons easier. 
it is also further up the table of reactivity..

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ANS: Zinc is up the table of reactivity to copper.Metals always react by losing electrons (oxidation) they are then reducing agents. However if a metals is in competition with metal ions the more reactive metal can oblige the less reactive metal (in the form of ions) to accept electrons. This is called a displacement reaction.

Zinc reacts with a solution containing copper ions. The zinc metal is more reactive than copper metal and so it can force the copper metal ions to accept electrons and become metal atoms.

Zn(s) Zn2+(aq) + 2e
Cu2+(aq) + 2e Cu(s)

The zinc metal passes its electrons to the copper ions. We observe that the zinc develops a pink layer of coper on its surface and the blue copper ion solution fades in colour.

We say that the zinc displaces the copper ions from solution. Thus, it proves Zinc is more reactive than Copper.

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it is just because that the electronegativity of copper is 1.9 and zinc's is 1.65

thus electronegativity of copper> zinc

soo copper has more tendency of attracting electrons than that of zinc thus

zinc is more reactive

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in reactivity series zinc comes before copper 

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but none of u have xplained why zinc  comes before copper in the electrinegative series

u have not explained the answer properlt neither read it properly

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4s2 is structure of zinc, so why is it so much more reactive than copper

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 The couple has been widely applied as a reagent in other reactions requiring activated zinc metal. Zinc-copper couple does not refer to a rigorously defined chemical structure or alloy composition.

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NO EXPERT ANSWER IS THERE WHY
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in the reactivity series of metals zinc comes before copper and its atomic structure is much larger than copper
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This is because copper in the metal reactivity tableis at a upper position than zinc
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Zinc is more reactive than copper because zinc is above in reactivity series than copper.
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It may be understand by Electrode Potential Values ,Zn has -0.76V and Cu has +0.34V. According to Electrochemical sires -ve value shows that it is Reducing Agent and +ve value shows that it is Oxidising agent. Therefore Zn is good Reducing agent by its Electrode potential value.
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Hope it helps u!!!
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This is because during displacement reaction , zinc can replace copper whereas copper cannot replace zinc. This shows that zinc is more reactive than copper. Science also states that only a more reactive metal can displace a less reactive metal.
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The zinc metal is coated with dark-black elemental copper. The copper metal, however, has no reaction with the ZnSO4 solution. The iron metal is coated with red-bronze metallic copper. Explanations (including important chemical equations): Zn (s) + CuSO4 (aq) ----> Cu (s) + ZnSO4 (aq) stronger reducing agent stronger oxidizing agent weaker reducing agent weaker oxidizing agent Cu (s) + ZnSO4 (aq) ---> Zn (s) + CuSO4 (aq) Fe (s) + CuSO4 (aq) ---> Cu (s) + FeSO4 (aq) Oxidation occurs when the oxidation number of an atom becomes larger. Reduction occurs when the oxidation number of an atom becomes smaller. Oxidizing agents gain electrons while reducing agents lose electrons. Generally, when metals are fully reduced, they form elemental metal and "plate" the site where they were reduced. In the first reaction, the copper ion is able to oxidize the zinc metal. However, in the second reaction, the zinc ion is not able to oxidize the copper metal. Zinc is a better reducing agent than copper. Strong reducing agents have weak conjugate oxidizing agents. Zn2+ is a weak conjugate oxidizing agent compared to Cu2+. Conversely, strong oxidizing agents have weak conjugate reducing agents. The second reaction did not occur because the reactants were the weaker reducing and oxidizing agents. In the third reaction, iron is a better reducing agent than copper, however iron is not as good as zinc.
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