Question

which of the following is different from the others by way of behaviour in a redox reaction
1) ClO4 -
2) NO2^-
3) SO3 ^2-
4)IO3^-

Answer 1

Answer:

option 3.

Explanation:

Hope this may help you....

Answer 2

Option B is the correct answer.

• A redox reaction is defined as a chemical reaction that involves both oxidation and reduction.
• Generally, a change of oxidation state occurs in redox reactions. If one element has a decrease in its oxidation state, the other element has an increase in its oxidation state.
• The given options are ClO$^{-} _{4 }$, NO$^{-1}_{2}$,SO$^{-2} _{3}$, IO$^{-1}_{3}$.

• The Oxidation state of ClO$^{-} _{4 }$ is +7. It undergoes reduction to oxidize other elements in the redox reaction.

• The Oxidation state of NO$^{-1}_{2}$ is +3. It undergoes oxidation to reduce other elements in the redox reaction.

• The Oxidation state of SO$^{-2} _{3}$ is +8. It undergoes reduction to oxidize other elements in the redox reaction.

• The Oxidation state of IO$^{-1} _{3}$ is +7. It undergoes reduction to oxidize other elements in the redox reaction.

• Options 1, 3, 4 undergo reduction whereas Option 2 undergoes oxidation. Hence, it is different from all the other options.

Therefore, Option B (NO$^{-1} _{2}$) is the correct answer.