Question
Write electrode reaction when hydrogen acts as:
- Cathode.
- Anode.
✓
Answer
-
At Cathode: $2\text{H}^+\text{(aq)}+2\text{e}^-\xrightarrow{ \ \ \ \ \ \ \ }\text{H}_2\text{(g)}$
-
At Anode: $\text{H}_2\text{(g)}\xrightarrow{ \ \ \ \ \ }2\text{H}^+\text{(aq)}+2\text{e}^-$
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Represent a galvanic cell in electrode and ions containing Cu electrode dipped in molar solution of copper sulphate and silver electrode dipped in molar solution of silver nitrate.
$\Big[\text{Given E}^\circ_{\frac{\text{Cu}^{2+}}{\text{Cu(s)}}}=0.34\text{V, E}^\circ_{\frac{\text{Ag}^+}{\text{Ag(s)}}}=0.80\text{V}\Big]$
→$\Big[\text{Given E}^\circ_{\frac{\text{Cu}^{2+}}{\text{Cu(s)}}}=0.34\text{V, E}^\circ_{\frac{\text{Ag}^+}{\text{Ag(s)}}}=0.80\text{V}\Big]$
Which of the following has maximum bond angle?
$\text{H}_2,\text{NH}_3,\text{CH}_4,\text{C}_2\text{H}_4$
→$\text{H}_2,\text{NH}_3,\text{CH}_4,\text{C}_2\text{H}_4$
How many significant figure are there in,
- 3.070
- 0.0025.
For an isolated system $\Delta U=0$, what will be $\Delta S$ ?
→What is the oxidation number of Mn in KMnO4?
Write the IUPAC name and symbol for the element with atomic number 109.
Draw the resonance structures of the following compounds;
State modern periodic law.
Convert methane into ethane.
Write the general electronic configuration of f-block elements.