Redox Reactions · Chemistry · JEE Advanced

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Numerical

JEE Advanced 2021 Paper 2 Online
A sample (5.6 g) containing iron is completely dissolved in cold dilute HCl to prepare a 250 mL of solution. Titration of 25.0 mL of this solution req...
JEE Advanced 2021 Paper 2 Online
A sample (5.6 g) containing iron is completely dissolved in cold dilute HCl to prepare a 250 mL of solution. Titration of 25.0 mL of this solution req...
JEE Advanced 2021 Paper 2 Online
Ozonolysis of ClO2 produces an oxide of chlorine. The average oxidation state of chlorine in this oxide is __________.
JEE Advanced 2016 Paper 1 Offline
In neutral or faintly alkaline solution, 8 moles of permanganate anion quantitative oxidise thiosulphate anions to produce X moles of a sulphur contai...
JEE Advanced 2014 Paper 1 Offline
Consider the following list of reagents, acidified K2Cr2O7, alkaline KMnO4, CuSO4, H2O2, Cl2, O3, FeCl3, HNO3 and Na2S2O3. The total number of reagent...
IIT-JEE 2011 Paper 1 Offline
The difference in the oxidation numbers of the two types of sulphur atoms in Na2S4O6 is

MCQ (More than One Correct Answer)

JEE Advanced 2020 Paper 2 Offline
Choose the correct statement(s) among the following :
JEE Advanced 2015 Paper 1 Offline
Fe3+ is reduced to Fe2+ by using
JEE Advanced 2014 Paper 1 Offline
For the reaction,$${I^ - } + ClO_3^ - + {H_2}S{O_4} \to C{l^ - } + HSO_4^ - + {I_2}$$the correct statement(s) in the balanced equation is/are...

MCQ (Single Correct Answer)

JEE Advanced 2017 Paper 2 Offline
The order of the oxidation state of the phosphorous atom in $${H_3}P{O_2},{H_3}P{O_4},{H_3}P{O_3}$$ and $${H_4}{P_2}{O_6}$$ is
IIT-JEE 2001 Screening
The reaction, $$3Cl{O^ - }(aq)$$$$ \to ClO_3^ - (aq) + 2C{l^ - }(aq)$$ is an example of :
IIT-JEE 1999
The normality of 0.3 M phosphorus acid (H3PO3) is
IIT-JEE 1992
For the redox reaction: $$MnO_4^ - + {C_2}O_4^{ - 2} + {H^ + }$$ $$ \to M{n^{2 + }} + C{O_2} + {H_2}O$$ The correct coefficients of the reactants for...
IIT-JEE 1990
The oxidation number of phosphorus in Ba(H2PO2) is :
IIT-JEE 1988
The equivalent weight of MnSO4 is half of its molecular weight, when it converts to
IIT-JEE 1982
The oxidation number of carbon in CH2O is
IIT-JEE 1981
1 mole of N2H4 loses 10 moles of electrons to form a new compound Y. assuming that all nitrogen appears in the new compound , what is the oxidation st...
IIT-JEE 1980
M is molecular weight of KMnO4. The equivalent wight of KMnO4 when it is converted into K2MnO4 is

Subjective

IIT-JEE 1986
Complete and balance the following equation: S + OH- $$\to$$ S2- + $$S_2O_3^-$$
IIT-JEE 1986
Complete and balance the following equation: Ag+ + AsH3 $$\to$$ H3AsO3 + H+
IIT-JEE 1986
Complete and balance the following equation: Mn2+ + PbO2 $$\to$$ $$MnO_4^-$$ + H2O
IIT-JEE 1986
Complete and balance the following equation: $$ClO_3^-$$ + I- + H2SO4 $$\to$$ Cl- + $$HSO_4^-$$
IIT-JEE 1986
Arrange the following in increasing oxidation number of iodine. I2, HI, HIO4, ICl
IIT-JEE 1983
Complete and balance the following equation: Ce3+ + $$S_2O_8^{-2} \to $$ $$SO_4^{-2}$$ + Ce4+
IIT-JEE 1983
Complete and balance the following equation: $$Cr_2O_7^{2-}$$ + C2H4O $$\to$$ C2H4O2 + Cr3+...
IIT-JEE 1983
Complete and balance the following equation: Zn + $$NO_3^- \to$$ Zn2+ + $$NH_4^+$$
IIT-JEE 1983
Complete and balance the following equation: HNO3 + HCl $$\to$$ NO + Cl2
IIT-JEE 1983
Complete and balance the following equations: Cl2 + OH- $$\to$$ Cl- + ClO-
IIT-JEE 1981
Balance the following Equations: (i) Cu2O + H+ + $$NO_3^ - \to $$ Cu2+ + NO + H2O (ii) K4[Fe(CN)6] + H2SO4 + H2O $$\to$$ K2SO4 + FeSO4 + (NH4)2SO4 + ...
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