Redox Reactions · Chemistry · TS EAMCET

100 mL of $0.05 \mathrm{M} \mathrm{Cu}^{2+}$ aqueous solution is added to IL of 0.1 M KI solution. The number of moles of $\mathrm{I}_2$ and $\mathrm{Cu}_2 \mathrm{I}_2$ formed are respectively.

$$ \begin{aligned} &\text { Consider the following redox reaction in basic medium. }\\ &\begin{aligned} x \mathrm{Cr}(\mathrm{OH})_3+y\left(\mathrm{IO}_3\right)^{-} & +\mathrm{z}(\mathrm{OH})^{-} \rightarrow a\left(\mathrm{CrO}_4\right)^{2-}+b(\mathrm{I})^{-}+\mathrm{c}\left(\mathrm{H}_2 \mathrm{O}\right) \end{aligned} \end{aligned} $$

The incorrect option about it is

What are the products formed when ammonium dichromate is thermally decomposed?

In which of the following, oxidation state of nitrogen is lowest?

The number of moles of oxalate ions oxidised by one mole of permanganate ions in acidic medium is

If the number of moles of $\mathrm{Fe}^{2+}$ ions oxidised by one mole of acidified $\mathrm{MnO}_4^{-}$is $x$, the number of moles of $\mathrm{Fe}^{2+}$ ions oxidised by one mole of acidified $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ is

In acidic medium one mole each of $\mathrm{MnO}_4^{-}$and $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ is reduce by $x$ and $y$ moles of ferrous ions. The sum of $x$ and $y$ is

$\mathrm{C}+$ Conc. $\mathrm{H}_{2} \mathrm{SO}_{4} \xrightarrow{\Delta} X+Y+\mathrm{H}_{2} \mathrm{O}$

$X$ and $Y$ in the above reaction are

Observe the following reaction,

$ 2 \mathrm{KClO}_{3}(s) \xrightarrow{\Delta} 2 \mathrm{KCl}(\mathrm{~s})+3 \mathrm{O}_{2}(\mathrm{~g}) $

In this reaction

Match the following.

( $M=$ Formula weight)

The correct answer is

Observe the following reactions.

$$ \begin{aligned} & \text { I. } \mathrm{H}_2 \mathrm{O}(l)+2 \mathrm{Na}(s) \longrightarrow 2 \mathrm{NaOH}(a q)+\mathrm{H}_2(g) \\\\ & \text { II. } 2 \mathrm{H}_2 \mathrm{O}(l)+2 \mathrm{~F}_2(g) \longrightarrow 4 \mathrm{H}^{+}(a q)+4 \mathrm{~F}^{-}(a q)+\mathrm{O}_2(g) \end{aligned} $$

The oxidation states of three carbon atoms in carbon suboxide $\left(\mathrm{C}_3 \mathrm{O}_2\right)$ respectively are

Which of the following reaction gives nitrogen (II) oxides as one of the products?

Which of the following is the strongest reducing agent?

Which of the following is only a redox reaction but not a disproportionation reaction?

Which of the following are disproportionation reactions?

(A) $\mathrm{Cl}_2+2 \mathrm{NaOH} \longrightarrow \mathrm{NaCl}+\mathrm{NaOCl}+\mathrm{H}_2 \mathrm{O}$

(B) $\mathrm{H}_2 \mathrm{O}_2 \longrightarrow 2 \mathrm{H}_2 \mathrm{O}+\mathrm{O}_2$

(C) $2 \mathrm{KMnO}_4 \rightarrow \mathrm{~K}_2 \mathrm{MnO}_4+\mathrm{MnO}_2+\mathrm{O}_2$

(D) $3 \mathrm{MnO}_4^{2-}+4 \mathrm{H}^{+} \longrightarrow 2 \mathrm{MnO}_4^{-}+\mathrm{MnO}_2+2 \mathrm{H}_2 \mathrm{O}$

The number of moles of ferrous oxalate oxidised by one mole of $\mathrm{KMnO}_4$ in acidic medium is

Identify the pair of reactions undergoing disproportionation from the following.

In the following reaction mixtures,

I. $\mathrm{Cu} / \mathrm{CuSO}_4+\mathrm{Ag} / \mathrm{Ag}_2 \mathrm{SO}_4$

II. $\mathrm{Zn} / \mathrm{ZnSO}_4+\mathrm{Cu} / \mathrm{CuSO}_4$

copper respectively undergoes

The weight of potassium dichromate (molecular weight $=294$ ) required to prepare 0.04 N of 250 mL solution is

What is the equivalent weight of $\mathrm{KMnO}_4$ in acidic medium? (Molecular weight of $\mathrm{KMnO}_4=158 \mathrm{~g}$ )

$\mathrm{KMnO}_4$ oxidises $\mathrm{C}_2 \mathrm{H}_2 \mathrm{O}_4$ to form $\mathrm{CO}_2$. In which of the following, the reaction will be faster?