Determine The Volume Of M/8 KmnO4 solution Required To React Completely With 25.0 Cm3 of M/4 FeSO4 solution Is Acidic Medium.

To 1 mole of pyrophosphoric acid (H₄P₂O₇) in aqueous solution 2 mole of NaOH are added. The salt formed is

What volume of 0.01 M K₂Cr₂O₇ would be required to oxidize Fe (II) in 50ml of 0.03 M solution of ferrous ammonium sulphate in acidic medium?

100ml of 0.01 M KMnO₄ oxidizes 10ml of H₂O₂ sample in acidic medium. The volume strength of H₂O₂ sample is

A sample of mixture of AO and A₂O₃ in 2 : 1 molar ratio takes 0.015 mole of K₂Cr₂O₇ to oxidize the sample completely to from  in acidic solution. Millimoles of AO and A₂O₃ in the sample are respectively

0.01 mole of Fe₃O₄ is treated with excess of KI solution in presence of dilute H₂SO₄ whereby iron is reduced to Fe²⁺ along with liberation of iodine. What volume of 0.1 M Na₂S₂O₃ will be needed to reduce the librated iodine?

In which of the following reaction, oxidation number of N remains unchanged?

KMnO₄ acts as a strong oxidizing agent in acidic medium. The reaction that occurs is

What will be the effect on the electrode potential of a half-cell represented as  if the concentration of H⁺ ion is doubled in solution?

In which of the following oxidation state of phosphours is + 3?

Calculate the concentration of hypo (Na₂S₂O₃.5H_­2O) solution in g dm^–3 if 10.0 of this solution decolourised 15 mL of M/40 iodine solution.

0.5 g of an impure sample of oxalate was dissolved in water and the solution made to 100 ml. On titration 10 ml of this solution required 15 ml of N/20 KMnO₄ solution. Calculate the percentage of pure oxalate in the sample.