JAMB Chemistry 1986 Question 15

Question 15

Electrolysis

In the electrolysis of aqueous solution of K2SO4 in the above cell, which species migrate to the anode?

Diagram for this question
  1. A.SO42− and OH−
  2. B.K+ and SO42−
  3. C.OH− and H3O+
  4. D.H3O+ and K+.
Show the answer and explanation

Answer: A (SO42− and OH−)

Explanation

The anode is positive, so the negative ions move to it. In K2SO4 solution these are SO42− and OH−.