Uses Of Electrolysis Jamb Chemistry Past Questions
Question 1
From the above diagram; The caustic soda in the conical flask serves to
- A. dry ethene gas
- B. remove carbon (iv) oxides from ethene
- C. remove carbon (ii) oxide from ethene
- D. remove sulphur (iv) oxide from ethene
Question 2
In order to electroplate spoon with silver, the arrangement of the electrolytic cell is?
- A. the anode is a silver rod and the cathode is the spoon
- B. the anode is the spoon and the cathode is a silver rod
- C. the electrolyte is silver trioxonitrate(v)( solution and the cathode is a silver rod.
- D. the electrolyte is silver trioxonitrate(v) solution and the anode is the spoon
Question 3
Which of the following processes takes place during electrolysis?
- A. Positive ions are discharged at the anode bby gaining sufficient electrons to become neutral
- B. Negative ions are dicharged at the anode by gaining suficient electrons to become neutral
- C. Positive ions are discharged at the anode by losing sufficient electrons to become neutral
- D. Negative ions are discharge at the anode by losing sufficient electrons to become neutral
- E. Nothing happens
Question 4
Which of the following statements is correct during the electrolysis of a caustic soda solution using platinum electrodes?
- A. Oxygen gas is given off at the cathode
- B. Hydrogen gas is given of at the anode
- C. Sodium metals is deposited at the anode
- D. Sodium metal is deposited at the cathode
- E. AAlkalinity at the cathode increases
