Redox and Equivalent Concept Questions

In which of the following reactions H2O2 acts as a reducing agent? (a) H2O2 + 2H+ + 2e- → 2H2O (b) H2O2 - 2e- → O2 + 2H+ (c) H2O2 + 2e- → 2OH- (d) H2O2 + 2OH- - 2e- → O2 + 2H2O...

The reaction of aqueous KMnO4 with H2O2 in acidic conditions gives :

1 g of the carbonate of a metal was dissolved in 25 mL of 1N-HCl. The resulting liquid required 5 mL of 1N-NaOH for naturalization. The Equivalent wt of the metal carbonate is...

The reason for greater range of oxidation states in actinoids is attributed to :-

The oxidation states of Cr in [Cr(H2O)6]Cl3,[Cr(C6H6)2] and K2[Cr(CN)2(O)2(O2)(NH3)] respectively are :...

For the redox reaction MnO4-+C2O42+H+→Mn2++CO2+H2O the correct coefficients of the reactants for the balanced equation are...

For the reaction I- + CIO3- + H2SO4 → Cl- + HSO4- + I2 The correct statements(s) in the balanced equation is/are...

Consider the following reaction: x MnO4- + y C2O42- + z H+ → x Mn2+ + (2y) CO2 + (z/2) H2O The values of x, y and z in the reaction are respectively :-...

Expermentally it was found that a metal oxide has formula M0.98O. Metal M, is present as M2+and M3+ in its oxide. Fraction of the metal which exists as M3+ would be :-...

In which of the folowing compounds, nitrogen exhibits highest oxidation state ?

A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction which element undergoes maximum change in the oxidation number ?

In which of the following compounds, nitrogen exhibits highest oxidation state?

A mixture of potassium chlorate, oxalic acid and sulphuric acid is heated. During the reaction whichelement undergoes maximum change in the oxidation number?

Which ordering of compounds is according to the decreasing order of the oxidation state of nitrogen?

29.5 mg of an organic compound containing nitrogen was digested according to Kjeldahl′s method and the evolved ammonia was absorbed in 20 mL of 0.1 M HCl solution. The excess of the acid require...

The equivalent weight of MnSO4 is half its molecular wight when it is converted to :

The number of moles of KMnO4 that will be needed to react with one mole of sulphite ion in acidic solution is :

The normality of 0.3 M phosphorous acid (H3PO3) is :

An aqueous solution of 6.3 g oxalic acid dihydrate is made up to 250 mL. The volume of 0.1 N NaOH required to completely neutralize 10 mL of this solution is :

In the standardization of Na2S2O3 using K2Cr2O7 by iodometry, the equivalent weight of K2Cr2O7is :...