Redox Reactions PYQs - Last 10 Years
TS EAMCET / Chemistry / Physical Chemistry / 25 recent questions
ChemistryPhysical Chemistry2016-2025
Practice 25 TS EAMCET Chemistry questions from Redox Reactions. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.
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2020-2025
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Last 10 Years Redox Reactions Questions
Showing 25 of 25 filtered questions.
1Redox Reactions
$$ \begin{aligned} &\text { Consider the following redox reaction in basic medium. }\\ &\begin{aligned} x \mathrm{Cr}(\mathrm{OH})_3+y\left(\mathrm{IO}_3\right)^{-} & +\mathrm{z}(\mathrm{OH})^{-} \rightarrow a\left(\mathrm{CrO}_4\right)^{2...
MCQ+1 / -02025
2Redox Reactions
What are the products formed when ammonium dichromate is thermally decomposed?
MCQ+1 / -02025
3Redox Reactions
100 mL of $0.05 \mathrm{M} \mathrm{Cu}^{2+}$ aqueous solution is added to IL of 0.1 M KI solution. The number of moles of $\mathrm{I}_2$ and $\mathrm{Cu}_2 \mathrm{I}_2$ formed are respectively.
MCQ+1 / -02025
4Redox Reactions
The number of moles of oxalate ions oxidised by one mole of permanganate ions in acidic medium is
MCQ+1 / -02025
5Redox Reactions
In which of the following, oxidation state of nitrogen is lowest?
MCQ+1 / -02025
6Redox Reactions
In acidic medium one mole each of $\mathrm{MnO}_4^{-}$and $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ is reduce by $x$ and $y$ moles of ferrous ions. The sum of $x$ and $y$ is
MCQ+1 / -02025
7Redox Reactions
If the number of moles of $\mathrm{Fe}^{2+}$ ions oxidised by one mole of acidified $\mathrm{MnO}_4^{-}$is $x$, the number of moles of $\mathrm{Fe}^{2+}$ ions oxidised by one mole of acidified $\mathrm{Cr}_2 \mathrm{O}_7^{2-}$ is
MCQ+1 / -02025
8Redox Reactions
Observe the following reactions. $$ \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) \longri...
MCQ+1 / -02024
9Redox Reactions
In which of the following, ions are correctly arranged in the increasing order of oxidising power?
MCQ+1 / -02024
10Redox Reactions
$\mathrm{C}+$ Conc. $\mathrm{H}_{2} \mathrm{SO}_{4} \xrightarrow{\Delta} X+Y+\mathrm{H}_{2} \mathrm{O}$$X$ and $Y$ in the above reaction are
MCQ+1 / -02024
11Redox Reactions
Match the following.
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MCQ+1 / -02024
12Redox Reactions
The normality of 20 volume solution of hydrogen peroxide is
MCQ+1 / -02024
13Redox Reactions
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
MCQ+1 / -02024
14Redox Reactions
The oxidation states of three carbon atoms in carbon suboxide $\left(\mathrm{C}_3 \mathrm{O}_2\right)$ respectively are
MCQ+1 / -02023
15Redox Reactions
Which of the following is the strongest reducing agent?
MCQ+1 / -02023
16Redox Reactions
Which of the following reaction gives nitrogen (II) oxides as one of the products?
MCQ+1 / -02023
17Redox Reactions
The equivalent weight of which of the following is maximum?
(Given : atomic weights $\mathrm{Na}=23, \mathrm{Mn}=55$,
\(\mathrm{Cr}=52, \mathrm{~K}=39, \mathrm{O}=16, \mathrm{C}=12)\)
(Given : atomic weights $\mathrm{Na}=23, \mathrm{Mn}=55$,
\(\mathrm{Cr}=52, \mathrm{~K}=39, \mathrm{O}=16, \mathrm{C}=12)\)
MCQ+1 / -02023
18Redox Reactions
Which of the following is only a redox reaction but not a disproportionation reaction?
MCQ+1 / -02023
19Redox Reactions
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}+\math...
(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}+\math...
MCQ+1 / -02022
20Redox Reactions
The number of moles of ferrous oxalate oxidised by one mole of $\mathrm{KMnO}_4$ in acidic medium is
MCQ+1 / -02022
21Redox Reactions
Identify the pair of reactions undergoing disproportionation from the following.
MCQ+1 / -02022
22Redox Reactions
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
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
MCQ+1 / -02020
23Redox Reactions
The weight of potassium dichromate (molecular weight $=294$ ) required to prepare 0.04 N of 250 mL solution is
MCQ+1 / -02020
24Redox Reactions
$\mathrm{KMnO}_4$ 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?
MCQ+1 / -02020
25Redox Reactions
What is the equivalent weight of $\mathrm{KMnO}_4$ in acidic medium? (Molecular weight of $\mathrm{KMnO}_4=158 \mathrm{~g}$ )
MCQ+1 / -02020