Question

Which of the following statements is correct and why ? copper can displace silver from the solution of silver nitrate and silver can displace copper from solution of copper sulphate

Answer 1

Copper can displace silver from silver nitrate is a correct statement because copper is more reactive than silver and lies above silver in reactivity series.

Answer 2

Answer: The correct statement is: Copper can displace silver from the solution of silver nitrate.

Explanation:

• In a displacement reaction, a more reactive element displace a less reactive element from a compound.

• Metal chemical reactivity is related with their positions in the activity series. In the aqueous solutions of their salts, some metals have the ability to displace other metals. A metal that is placed higher in the activity series can displace a metal in a lower position from the aqueous solution of its salt.
• Copper is present above silver in the activity series, so it can displace silver from its aqueous solution of silver nitrate as:

       $Cu (s) + 2 AgNO_{3} (aq)$  → $Cu(NO_{3} )_{2} (aq) + 2 Ag$  

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