Question

name the gases formed on the electrodes connected to the positive and negative terminal of the battery during electrolysis of water​

Answer 1

Answer:

Explanation:Oxygen will collect at the positively charged electrode (anode) and hydrogen will collect at the negatively charged electrode (cathode). Note that hydrogen is positively charged in the H2O molecule, so it ends up at the negative electrode.

Answer 2

Answer:

The formation of hydrogen gas takes place at the cathode and oxygen gas at the anode.

Explanation:

• When a compound is separated into a number of its component parts by passing an electric current, then the process is called electrolysis.
• A path is provided to the various ions when an electric current is passed.

The decomposition of a water molecule into $OH^{-}$ions and $H^{+}$ ions takes place when electricity is passed through it. The decomposition of water takes place to give hydrogen and oxygen gas.

Cathode reaction:

$2H_{2} O + 2e$ → $H_{2} +2OH^{-}$

Anode reaction:

$2OH^{-}$ → $\frac{1}{2} O_{2} +H_{2} O + 2e$

Hence, the formation of hydrogen gas takes place at the cathode and oxygen gas at the anode.