MCQ
In electrolysis:
  • A
    Positive ions move toward the positive electrode and negative ions toward the negative electrode.
  • B
    Positive ions move toward the negative electrode and negative ions toward the positive electrode.
  • C
    Both ions move toward both the electrodes in equal amounts until they are balanced.
  • D
    None of the above.

Answer

  1. Positive ions move toward the negative electrode and negative ions toward the positive electrode.

Explanation:

The process in which electrical current is passed through a substance to effect a chemical change. The chemical change is one in which the substance loses or gains an electron (oxidation or reduction) is called electrolysis.

The process is carried out in an electrolytic cell, an apparatus consisting of positive and negative electrodes held apart and dipped into a solution containing positively and negatively charged ions. In this process, positive ions move toward the negative electrode and negative ions toward the positive electrode.

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