SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Reaction of hydrochloric acid with copper(II) oxide
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Reaction of copper with silver nitrate solution
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Electrolysis of copper(II) sulphate solution using carbon electrodes
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Chemical cell with copper and zinc electrodes in dilute sulphuric acid
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Detailed explanation-1: -This is a type of redox reaction. At the beginning of the experiment, the pure elemental form of copper (Cu) is oxidised by the silver nitrate solution. This means that it loses electrons and forms copper ions.
Detailed explanation-2: -Silver nitrate (AgNO3) reacts with copper (Cu) to form copper(II) nitrate (Cu(NO3)2) and silver (Ag). This can be called a redox reaction because silver nitrate is reduced and copper is oxidized. This can also be called a single replacement reaction because copper replaces silver in the substance silver nitrate.
Detailed explanation-3: -Hence, copper (Cu) is a reducing agent and silver nitrate ( AgNO3 A g N O 3 ) is an oxidizing agent. In this reaction, both oxidation and reduction take place.
Detailed explanation-4: -This is a double replacement or a metathesis reaction. In this reaction, Copper (Cu) and Silver Nitrate (AgNO3) are the reactants, and Copper Nitrate (Cu(NO3)) and Silver (Ag) are the products.