When ethane is burnt in presence of excess of oxygen, the oxidation number of carbon changes by
O.N.of carbon changes from –3 (in ethane) to +4(in CO2).
The oxidation number of S in
Oxidation number of chlorine atom in CaOCl2 are
1 mol of N2 H4 loses 10 mol of electrons to form a new compound X. Assuming that all the nitrogen appears in the new compound and no change in the oxidation state of hydrogen, the oxidation number in X is
Which of the following is the strongest reducing agent?
In which of the following compounds the oxidation number of carbon is not zero?
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)