Chemistry Quiz on Electrochemistry
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Questions and Answers

What is the product of the reaction between Mg and ZnSO4?

  • MgSO4 + Zn (correct)
  • Zn + MgSO4
  • Mg2SO4 + Zn
  • No reaction
  • Which metal does not react with hydrochloric acid?

  • Zn
  • Mg
  • Fe
  • Au (correct)
  • In the cell notation, which is referred to as the anode?

  • Neutral electrode
  • Small brother
  • Cathode
  • Big brother (correct)
  • What is produced in the reaction between Fe and HCl?

    <p>H2 + FeCl2</p> Signup and view all the answers

    Which of the following metals will react with zinc sulfate?

    <p>Magnesium</p> Signup and view all the answers

    Which metal reacts with zinc sulfate in the provided reaction?

    <p>Magnesium</p> Signup and view all the answers

    Which of the following metals is the least reactive?

    <p>Gold</p> Signup and view all the answers

    Which reaction does not occur according to the given information?

    <p>Au + HCl</p> Signup and view all the answers

    In electrolysis, where does reduction take place?

    <p>At the cathode</p> Signup and view all the answers

    Which metal will more likely be reduced at the cathode in a reaction?

    <p>A less reactive metal cation</p> Signup and view all the answers

    Study Notes

    Introduction to Metals

    • Key metals: Lithium (Li), Magnesium (Mg), Cadmium (Cd), Copper (Cu), Potassium (K), Aluminum (Al), Cobalt (Co), Mercury (Hg), Barium (Ba), Manganese (Mn), Nickel (Ni), Silver (Ag), Calcium (Ca), Zinc (Zn), Tin (Sn), Platinum (Pt), Sodium (Na), Iron (Fe), Lead (Pb), Gold (Au), and Hydrogen (H₂).

    Reactivity in Reactions

    • Magnesium (Mg) + Zinc Sulfate (ZnSO₄): Produces Magnesium Sulfate (MgSO₄) and Zinc (Zn) with no reaction in reverse.
    • Iron (Fe) + Hydrochloric Acid (HCl): Produces Hydrogen gas (H₂) and Iron(II) Chloride (FeCl₂).
    • Gold (Au) + Hydrochloric Acid (HCl): No reaction occurs.

    Electrolysis Concepts

    • Anode is referred to as "big brother," while the cathode is termed "little brother."
    • The more reactive metal cation will be reduced at the cathode during electrolytic processes.

    Reactivity Series

    • Metals are arranged in decreasing order of reactivity:
      • Lithium (Li) is the most reactive.
      • Followed by Potassium (K), Barium (Ba), Calcium (Ca), Sodium (Na), Magnesium (Mg), Aluminum (Al), Zinc (Zn), Iron (Fe), Lead (Pb), Copper (Cu), Mercury (Hg), Silver (Ag), Platinum (Pt), and Gold (Au) is the least reactive.

    Key Reaction Outcomes

    • Mg + ZnSO₄: Reaction occurs; reverse has no reaction.
    • Zn + MgSO₄: No reaction occurs.
    • Fe + HCl: Reaction occurs.
    • Au + HCl: No reaction occurs.

    This framework highlights the relative reactivities of metals and their behaviors in specific chemical reactions, crucial for understanding electrochemistry and metal reactions.

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    Description

    Test your knowledge of electrochemistry with this comprehensive quiz! From understanding cellular reactions to predicting outcomes of metal reactions, this quiz covers essential concepts in chemistry. Perfect for students looking to reinforce their understanding of chemical reactions and electrolysis.

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