19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
The oxidation number of C in HNC is
The oxidation state of Fe in Fe3O8 is
Which one of the following reaction involves oxidation- reduction?
The oxidation number of C in CH2O is
Oxidation number of carbon in CCl is :
The oxidation states of the most electronegative elements in the products of the reaction between BaO2 and H2SO4 are
The oxidation state of C in diamond is
In which of the following compounds is the oxidation state of C highest?
In which of the following compounds is the oxidation state of C a fraction?
In which of the following compounds, the oxidation number of iodine is fractional?
In which of the compounds does manganese exhibit highest oxidation number?
Which of the following molecules has least oxidation number of central atom?
A metal ion M3+ loses 3 electrons, its oxidation number will be :
In which of the following reactions, there is no change in valency? (a) SO 2H S 2H O 3S -> (b) 2Na O 2Na O -> (c) Na O H SO Na SO H O -> (d) 4KClO 3KClO KCl -> Ans (c) Sol. The oxidation states of central atom i…
The oxidation states of iodine in HIO4, H3IO5 and H5IO6 respectively, are
When sulfur dioxide is passed in an acidified K2Cr2O7 solution, the oxidation state of sulfur is changed from
Oxidation number of iodide in IO ,IO ,KI and I respectively, are
+3 oxidation state is most common in
Oxidation state of nitrogen is correctly given for Compound Oxidation State
The oxidation states of sulfur in the anions SO , S O and S O follow the order (a) S O S O SO (b) S O S O SO (c) S O SO S O (d) SO S O S O
An element exhibits an oxidation state -2. How many electrons are present in its outer shell?
The oxidation state of chromium in the final product formed by the reaction between KI and acidified potassium dichromate solution is
MnO4 - is a good oxidizing agent in different medium changing to MnO Mn MnO MnO Mn O -> -> -> -> Changes in oxidation number respectively, are
A mole of N2H4 loses 10 mol of electrons to form a new compound Y. Assuming that all the nitrogen appears in the new compound, what is the oxidation state of nitrogen in Y? (There is no change in the oxidation number …
In which of the following pairs is there the greatest difference is the oxidation numbers of the oxidation numbers of the central atom?