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प्रश्न
Consider the elements : Cs, Ne, I and F
Identify the element which exhibits neither the negative nor does the positive oxidation state.
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उत्तर
The oxidation state of Ne is zero. It exhibits neither negative nor positive oxidation states.
संबंधित प्रश्न
Assign oxidation numbers to the underlined element in the following species:
H4P2O7
What are the oxidation numbers of the underlined elements in the following and how do you rationalise your results?
KI3
What are the oxidation numbers of the underlined elements in the following and how do you rationalise your results?
H2S4O6
What is the oxidation numbers of the underlined elements in the following and how do you rationalise your results?
Fe3O4
Consider the elements: Cs, Ne, I and F
Identify the element that exhibits only negative oxidation state.
The largest oxidation number exhibited by an element depends on its outer electronic configuration. With which of the following outer electronic configurations the element will exhibit largest oxidation number?
The exhibition of various oxidation states by an element is also related to the outer orbital electronic configuration of its atom. Atom(s) having which of the following outermost electronic configurations will exhibit more than one oxidation state in its compounds.
(i) 3s1
(ii) 3d14s2
(iii) 3d24s2
(iv) 3s23p3
The reaction \[\ce{Cl2 (g) + 2OH- (aq) -> ClO- (aq) + Cl- (aq) + H2O (l)}\] represents the process of bleaching. Identify and name the species that bleaches the substances due to its oxidising action.
\[\ce{PbO}\] and \[\ce{PbO2}\] react with \[\ce{HCl}] according to following chemical equations:
\[\ce{2PbO + 4HCl -> 2PbCl2 + 2H2O}\]
\[\ce{PbO2 + 4HCl -> PbCl2 + Cl2 + 2H2O}\]
Why do these compounds differ in their reactivity?
Nitric acid is an oxidising agent and reacts with \[\ce{PbO}\] but it does not react with \[\ce{PbO2}\]. Explain why?
Calculate the oxidation number of phosphorus in the following species.
\[\ce{HPO^{2-}3}\]
Calculate the oxidation number of phosphorus in the following species.
\[\ce{PO^{3-}4}\]
Calculate the oxidation number of sulphur atom in the following compounds:
\[\ce{Na2S2O3}\]
Calculate the oxidation number of sulphur atom in the following compounds:
\[\ce{Na2S4O6}\]
Match Column I with Column II for the oxidation states of the central atoms.
| Column I | Column II |
| (i) \[\ce{Cr2O^{2-}7}\] | (a) + 3 |
| (ii) \[\ce{MnO^{-}4}\] | (b) + 4 |
| (iii) \[\ce{VO^{-}3}\] | (c) + 5 |
| (iv) \[\ce{FeF^{3-}6}\] | (d) + 6 |
| (e) + 7 |
The oxidation number and covalency of sulphur in sulphur molecules (Sg) are:
Oxidation number of potassium in K2O, K2O2 and KO2, respectively, is ______.
Oxidation state of sulphur in anions `"SO"_3^(2-)`, `"S"_2"O"_4^(2-)` and `"S"_2"O"_6^(2-)` increases in the orders:
