List of top Chemistry Questions on Redox reactions

Benzene on reaction with benzoyl chloride in the presence of anhydrous $\mathrm{AlCl}_3$ forms:

In the balanced redox reaction $\mathrm{Cr}_2\mathrm{O}_7^{2-} + \mathrm{SO}_3^{2-} \longrightarrow \mathrm{Cr}^{3+} + \mathrm{SO}_4^{2-}$, the ratio of the number of $\mathrm{Cr}_2\mathrm{O}_7^{2-}$ ions to $\mathrm{SO}_4^{2-}$ ions is:

What is the color of the flame produced when Magnesium (Mg) is burned in air?

What will be formed from the reaction: NaOH + Zn $\rightarrow$ ?

What is deposited on the walls after whitewashing?

What will be the products on heating Barium Nitrate Ba(NO$_3$)$_2$?

H$_2$O$_2$ reduces KMnO$_4$ in acidic medium to 'x' and in basic medium to 'y'. What are x and y?

100 mL of aqueous solution of 0.05 M Cu$^{2+}$ is added to 1 L of 0.1 M KI solution. The resultant solution was titrated with 0.1 M Na$_2$S$_2$O$_3$ solution using starch indicator until blue color disappeared. What is the volume (in mL) of Na$_2$S$_2$O$_3$ used?

In acid medium, dichromate oxidizes sulphite to sulphate. In this redox reaction, the oxidation state of sulphur changes from $x$ to $y$. What is the value of $x + y$?

In which of the following reactions of H$_2$O$_2$, dioxygen is evolved? (only = O$_2$ evolved)
I) With HOCl in acidic medium
II) With permanganate in acidic medium
III) With permanganate in basic medium

In acidic medium $\text{MnO}_4^-$ oxidises $\text{NO}_2^-$ to $\text{NO}_3^-$. How many moles of $\text{NO}_2^-$ are oxidised by 10 moles of $\text{MnO}_4^-$?

Alkaline oxidative fusion of MnO$_2$ gives 'X'. The products formed when 'X' undergoes disproportionation in acid medium are
I) KMnO$_4$
II) MnO$_2$
III) O$_2$
IV) H$_2$O

In acid medium dichromate oxidizes sulphite to sulphate as shown below. Identify correct statements about this balanced equation:
\[ x {Cr}_2{O}_7^{2-} + y {SO}_3^{2-} + z {H}^+ \rightarrow a {Cr}^{3+} + b {SO}_4^{2-} + c {H}_2{O} \] Statements:
I) Sum of $x$ and $y$ is (4)
II) Sum of $a$ and $c$ is equal to $(3 + b)$.
III) Sum of $x$, $y$, and $z$ is 11.

Which one of the following oxidizes manganous salt to permanganate in aqueous solution?

In a redox titration, 25 mL of 0.1 M KMnO$_4$ is required to completely react with oxalic acid in acidic medium. The volume of 0.2 M oxalic acid used is:
(Balanced reaction: $ 2\text{MnO}_4^- + 5\text{C}_2\text{O}_4^{2-} + 16\text{H}^+ \rightarrow 2\text{Mn}^{2+} + 10\text{CO}_2 + 8\text{H}_2\text{O} $)

The standard reduction potential values of some of the p-block ions are given below. Predict the one with the strongest oxidizing capacity.

In neutral medium, permanganate reacts with iodide to give:

One of the products formed from the reaction of permanganate ion with iodide ion in neutral aqueous medium is:

The product (A) formed in the following reaction sequence is:

Which of the following arrangements with respect to their reactivity in nucleophilic addition reaction is correct?

Match the LIST-I with LIST-II (Redox Reactions).

Choose the correct answer from the options given below:

Which of the following oxidation reactions are carried out by both $ K_2Cr_2O_7 $ and $ KMnO_4 $ in acidic medium?
A. $ I^- \rightarrow I_2 $
B. $ S^{2-} \rightarrow S $
C. $ Fe^{2+} \rightarrow Fe^{3+} $
D. $ I^- \rightarrow IO_3^- $
E. $ S_2O_3^{2-} \rightarrow SO_4^{2-} $
Choose the correct answer from the options given below:

The incorrect statements among the following is:

As per the following equation, 0.217 g of HgO (molecular mass = 217 g mol$^{-1}$) reacts with excess iodide. On titration of the resulting solution, how many mL of 0.01 M HCl is required to reach the equivalence point?

How many electrons are needed to reduce N$_2$ to NH$_3$?