Redox Reactions questions
1186 published questions with worked solutions.
- Calculate % by mass of H_2O_2 solution that is 67.2 by volume
- In the equation, BiO_3^- + 6H^+ + x e^- Bi^ 3+ + 3H_2O What is the value of x?
- An aqueous solution of oxalic acid dihydrate contains its 6.3 g in 250ml. The volume of 0.1 N NaOH required to completely...
- XMnO_4^- + YC_2O_4^ 2- + ZH^+ XMn^ 2+ + 2YCO_2 + Z2H_2O In the following balanced reaction, values of X, Y and Z respectively are
- Given E^ _ Cr^ 3+ /Cr = -0.74 V; E^ _ MnO_4^-/Mn^ 2+ = 1.51 V E^ _ Cr_2O_7^ 2- /Cr^ 3+ = 1.33 V; E^ _ Cl_2/Cl^- = 1.36 V Based on...
- Given : XNa_2HAsO_3 + YNaBrO_3 + ZHCl NaBr + H_3AsO_4 + NaCl The values of X, Y and Z in the above redox reaction are...
- Electrode potentials (E°) are given below : Cu^+/Cu = +0.52 V, Fe^ 3+ /Fe^ 2+ = +0.77 V, 12I_2(s)/I^- = +0.54 V, Ag^+/Ag = +0.88...
- Oxidation state of sulphur in anions SO_3^ 2- , S_2O_4^ 2- and S_2O_6^ 2- increases in the orders :
- Which one of the following cannot function as an oxidising agent?
- Hydrogen peroxide acts both as an oxidising and as a reducing agent depending upon the nature of the reacting species. In which...
- Which one of the following exhibits the large number of oxidation states?
- How many electrons are involved in the following redox reaction? Cr_2O_7^ 2- + Fe^ 2+ + C_2O_4^ 2- Cr^ 3+ + Fe^ 3+ + CO_2...
- Consider the reaction : H_2SO_ 3(aq) + Sn^ 4+ _ (aq) + H_2O_ (l) Sn^ 2+ _ (aq) + HSO_ 4(aq) ^- + 3H^+_ (aq) . Which of the...
- In an acidic medium, 10 mL of 0.25 M oxalic acid is titrated with KMnO_4 solution. If the volume of KMnO_4 solution required to...
- Given below are two statements : Statement-I : Heating NaCl with concentrated H_2SO_4 and MnO_2 results in oxidation of Mn....
- The correct decreasing order of oxidation state of the underlined atom in each molecule is
- Given E^ _ Cl_2/Cl^- = 1.36 V, E^ _ Cr^ 3+ /Cr = -0.74 V, E^ _ Cr_2O_7^ 2- /Cr^ 3+ = 1.33 V, E^ _ MnO_4^-/Mn^ 2+ = 1.51 V. Among...
- Which of the following reactions is an example of a redox reaction?
- The pair of compounds having metals in their highest oxidation state is:
- In which of the following reactions, hydrogen peroxide acts as an oxidizing agent?
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