Redox Reactions questions
1186 published questions with worked solutions.
- Compound when CuSO_4 is treated with KI and then titrated with Na_2S_2O_3 solution _____.
- How many of the following have (the underlined) atoms in different oxidation states? Hg I _4^ 2- , S _2O_3^ 2- , S _4O_6^ 2- , Cr...
- What is the sum of the (distinct) oxidation numbers of iron in Prussian blue?
- In haemoglobin the iron shows oxidation state:
- HgCl_2 is reduced to Hg_2Cl_2 by:
- Which will reduce acidified potassium dichromate solution?
- Which of the following reactions represents developing in photography?
- In the chemical reaction Ag_2O+H_2O+2e^- 2Ag+2OH^-:
- An acidified solution of KMnO_4 oxidizes:
- Cu^ 2+ ions would be reduced to cuprous ion if their solutions are mixed with an aqueous:
- Maximum oxidation state is presented by:
- Oxidation state of Hg in an amalgam is:
- Number of electrons transferred in each case when KMnO_4 acts as an oxidising agent to give MnO_2, Mn^ 2+ , Mn(OH)_3 and MnO_4^...
- Consider the following list of reagents: acidified K_2Cr_2O_7, alkaline KMnO_4, CuSO_4, H_2O_2, Cl_2, O_3, FeCl_3, HNO_3 and...
- In neutral or faintly alkaline solution, 8 moles of permanganate anion quantitatively oxidise thiosulphate anions to produce X...
- In dilute aqueous H_2SO_4, the complex diaquadioxalatoferrate(II) is oxidised by MnO_4^-. For this reaction, the ratio of the...
- Oxidation number of manganese in the manganite (manganate, MnO_4^ 2- ) ion is _____.
- 100 mL of 0.1 M KMnO_4 solution reacts completely with 50 mL of FeSO_4 solution in acidic medium. The mass of FeSO_4 in 50 mL of...
- In alkaline medium, thiosulphate ions are oxidised to sulphate ions by MnO_4^- ions. The oxidation number of Mn decreases by...
- In how many of the following is the oxidation state of the transition metal greater than +3? Mn_2O_7, V_2O_3, TiO_2, CrCl_2,...
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