Question

86. If electrodes were immersed in water, and a current is passed –

• A. Oxygen bubbles formed at the positive terminal
• B. Hydrogen bubbles formed at the positive terminal
• C. Hydrogen bubbles formed at the negative terminal
• D. Both (a) and (c)

Answer 1

The correct option is D Both (a) and (c)

1. The passage of an electric current through a conducting liquid causes chemical reactions. The resulting effects are called chemical effects of currents.
2. If electrodes were immersed in water, and a current was passed, bubbles of oxygen and hydrogen were produced.
3. Oxygen bubbles formed on the electrode connected to the positive terminal of the battery and hydrogen bubbles formed on the other electrode.