Electrolysis Basics
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Questions and Answers

What are the types of electrodes used in electrolysis?

  • Anodes and Cathodes (correct)
  • Titanium and Silver
  • Sodium and Potassium
  • Aluminum and Copper

What happens to cations at the cathode during electrolysis?

  • They lose electrons to form non-metal molecules
  • They attract positively charged ions (cations)
  • They repel negatively charged ions (anions)
  • They gain electrons to form metal atoms or hydrogen gas (correct)

What are electrolytes?

  • Substances that can conduct electricity when molten or in solution (correct)
  • Substances that can't conduct electricity in any form
  • Substances that can conduct electricity only when molten
  • Substances that can conduct electricity when solid

What types of substances can conduct electricity when molten or in solution?

<p>Electrolytes (A)</p> Signup and view all the answers

Which type of electrode attracts positively charged ions (cations) during electrolysis?

<p>Cathodes (B)</p> Signup and view all the answers

What is the purpose of using unreactive metals like platinum for making electrodes?

<p>To avoid the electrodes reacting with the electrolyte (C)</p> Signup and view all the answers

What happens to anions at the anode during electrolysis?

<p>They lose electrons to form non-metal molecules (B)</p> Signup and view all the answers

What does the electric current enter and leave the electrolyte through during electrolysis?

<p>Electrodes (B)</p> Signup and view all the answers

What do ions in the electrolytes do under the conditions of being molten or in solution?

<p>They gain or lose electrons easily (B)</p> Signup and view all the answers

What happens to anions at the anode during electrolysis?

<p>They lose electrons to form non-metal molecules (B)</p> Signup and view all the answers

What are electrolytes?

<p>Substances that can conduct electricity when molten or in solution (C)</p> Signup and view all the answers

What is the purpose of using unreactive metals like platinum for making electrodes?

<p>To prevent the electrodes from reacting with the electrolyte (C)</p> Signup and view all the answers

What do ions in the electrolytes do under the conditions of being molten or in solution?

<p>They can easily pass through to conduct electricity (B)</p> Signup and view all the answers

What does the electric current enter and leave the electrolyte through during electrolysis?

<p>Electrodes (B)</p> Signup and view all the answers

Which type of electrode attracts positively charged ions (cations) during electrolysis?

<p>Anodes (D)</p> Signup and view all the answers

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