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Chemical Effects of Electric Current Quiz for Class 8 Students
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Chemical Effects of Electric Current Quiz for Class 8 Students

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Questions and Answers

What is the process of decomposition of a substance by passing electric current through it called?

  • Electrolytic cell
  • Electrolysis (correct)
  • Electroplating
  • Electric discharge

    • Which of the following materials is typically used as an electrolyte in the process of electrolysis?

  • Sodium chloride solution (correct)
  • Aluminum foil
  • Pure water
  • Copper wire

    • What is the purpose of an inert electrode in the process of electrolysis?

  • To prevent unwanted side reactions (correct)
  • To conduct electricity into the electrolyte
  • To increase the rate of electrolysis
  • To react with the electrolyte

    • Force is a vector quantity because it has both magnitude and ______

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

    Pressure is defined as force per unit ______

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

    The SI unit of pressure is the ______

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

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