Question

The colourless solution of
silver nitrate slowly turns
blue on adding copper
chips to it because of
Select one:
a. Oxidation of Ag+ + Ag
b. Oxidation of Cu atoms
C. Reduction of Cu2+ ions
d. Dissolution of Copper​

Answer 1

Explanation:

a) Dissolution of copper is teg correct option !!!

Answer 2

A blue-colored solution eventually forms when copper chips are introduced to a silver nitrate solution over time due to the oxidation of Cu atoms.

• The solution of silver nitrate is colorless, when copper chips are added, it gradually turns blue.
• Tn atom or an ion loses one or more electrons during a redox process known as an oxidation reaction.
• The chemical equation for this reaction will be,

        $Cu + 2AgNO_{3}$ → $Cu(NO_{3})^{2} +$ $2 Ag$

• The silver is less reactive than copper and hence experiences reduction, which involves the gain of 2 electrons to form Ag.
• In this case, the copper undergoes oxidation, involving the loss of 2 electrons to form $Cu^{2+}$.
• A blue aqueous solution of copper nitrate is created when copper replaces silver.

Hence, option (b) oxidation of Cu atoms will be the correct answer.

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