20mL Solution Containing 0.1 M Each Of HCl And HNO3 required x mL Of 0.1 M NaOH For Complete Neutralization. In Another Experiment To 20mL Of Original Solution, Excess Of AgNO3 is Added And The Precipitate Of AgCl Is Filtered Off. The Entire Filtrate Along With Washings Required Y ML Of The Same NaOH Solution For Neturalization. Then, Which Of The Following Relation Is Correct?

Ratio of mols of Fe(II) oxidised by equal volumes of equilmolar KMnO₄and K₂Cr₂O₇ solutions in acidic medium will be

The oxidation numbers of most electronegative element in the products of hydrolysis of peroxydisulphuric acid are

For the redox reaction  the correct coefficients of the reactants for the balanced equation are

The equivalent  mass of Na₂CrO₄ used as oxidant in acidic medium is (Cr = 52)

The equivalent masses of Na₂CO₃ when it is titrated with HCl using phenolphthalein and methyl orange indicators in separate experiments are

Which of the following can be reduced by SnCl₂ solution

Hydrazine reacts with KIO₃ in presence of HCl as

The equivalent masses of N₂H₄ and KIO₃ respectively are

In iodometric estimation of Cu²⁺ ions, the following reactions take place

If 100mL of CuSO₄ solution added to an excess of KI requires 50mL of 0.2 M Na₂S₂O₃, the molarity of CuSO₄ solution is

0.66 g H₃PO₂ will require x mL of 0.1 M NaOH for complete neutralization .x is

10g sample of H₂O₂ just decolorised 100mL of 0.1 M KMnO₄ in acidic medium. % by mass of H₂O in the sample is