Question
Write the oxidation and reduction half reactions from the following redox reaction.
2Fe + 2H2O + O2 → 2Fe(OH)2
2Fe + 2H2O + O2 → 2Fe(OH)2
✓
Answer
$\text{Fe}\xrightarrow{\ \ \ }\text{Fe}^{2+}+2\text{e}^-$ (Oxidation)
$\frac12\text{O}_2+\text{H}_2\text{O}+2\text{e}^-\xrightarrow{\ \ \ \ \ \ }\text{2OH}^-$ (Oxidation)
$\frac12\text{O}_2+\text{H}_2\text{O}+2\text{e}^-\xrightarrow{\ \ \ \ \ \ }\text{2OH}^-$ (Oxidation)
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
Predict which of the following reaction will have appreciable concentration of reactants and products:
$\text{Cl}_2\text{ (g)}+\text{2NO (g)}\rightleftharpoons2\text{NOCl (g) K}_\text{c}=3.7\times10^8$
→$\text{Cl}_2\text{ (g)}+\text{2NO (g)}\rightleftharpoons2\text{NOCl (g) K}_\text{c}=3.7\times10^8$
Draw the resonance structures for the following compounds. Show the electron shift using curved-arrow notation.
$\ \ \ \ \ \ \ \ \ \ \ \ \ + \\ \text{C}_6\text{H}_5-\text{CH}_2$
→$\ \ \ \ \ \ \ \ \ \ \ \ \ + \\ \text{C}_6\text{H}_5-\text{CH}_2$
Write two incidents proving the wave nature of light.
Find out from following, which molecule do not have depole moment zero :
$
CF_4, BCl_3, BeCl_2, CO_2, NF_3, H_2 O \text { and } CHCl_3
$
→$
CF_4, BCl_3, BeCl_2, CO_2, NF_3, H_2 O \text { and } CHCl_3
$
Calculate the oxidation number of Al in $LiAlH _4$.
→In the following Questions, the Assertion and Reason have been put forward. Read the statements carefully and choose the correct alternative from the following:
- Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
- Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
- Assertion is true but Reason is false.
- Both Assertion and Reason are false.
Assertion: An isolated system is the one which can neither exchange matter nor energy with the surroundings.
Reason: It should be noted that every system is perfectly isolated.If we get blood red colouration on adding FeSO4 and dil. H2SO4 to the sodium extract, what do you infer about the elements present in organic compound?
With which quantum number does every period in periodic table begin?
Write IUPAC names of the following compound:
What will the effect of rise in temperature on value of $K _{ w }$ ?
→