Calculate The Concentration Of Hypo (Na2S2O3.5H­2O) Solution In G Dm–3 if 10.0 Of This Solution Decolourised 15 ML Of M/40 Iodine Solution.

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?

Determine the volume of M/8 KmnO₄ solution required to react completely with 25.0 cm³ of M/4 FeSO₄ solution is acidic medium.

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.

Predict whether zinc and silver react with 1 M sulphuric acid to give out hydrogen or not. Give that the standard potentials of zinc and silver are – 0.76 volt and +0.80 volt respectively.