Hydrazine reacts with KIO3 in presence of HCl as
The equivalent masses of N2H4 and KIO3 respectively are
8 and 53.5
O.N. of N in N2H4 is = 2 which changes to 0 in N2
O.N. of iodine changes from +5 in to +1 in ICI.
In which of the following compounds the oxidation number of carbon is not zero?
When ethane is burnt in presence of excess of oxygen, the oxidation number of carbon changes by
In a reaction, 3mol of electrons are gained by 1 mol of HNO3. Assuming no change in oxidation state of hydrogen the possible product obtained due to reduction will be
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
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