Advertisements
Advertisements
प्रश्न
Calculate the oxidation number of sulphur atom in the following compounds:
\[\ce{Na2SO3}\]
Advertisements
उत्तर
Let x = oxidation number of sulphur, and +1 is oxidation number of \[\ce{Na}\], –2 is oxidation number of \[\ce{O}\], also we can assume total charge on compound = 0 then solving we get.
+2 + x – 6 = 0
x = +4.
APPEARS IN
संबंधित प्रश्न
Assign oxidation numbers to the underlined element in the following species:
H4P2O7
Assign oxidation numbers to the underlined elements in the following species:
K2MnO4
Assign oxidation numbers to the underlined elements in the following species:
KAl(SO4)2.12 H2O
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 both positive and negative oxidation states.
Consider the elements : Cs, Ne, I and F
Identify the element which exhibits neither the negative nor does the positive oxidation state.
In which of the following compounds, an element exhibits two different oxidation states.
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 sulphur atom in the following compounds:
\[\ce{Na2SO4}\]
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 of P in Mg2P207 is ____________.
The oxidation number and covalency of sulphur in sulphur molecules (Sg) are:
The oxidation states of iron atoms in compounds (A), (B) and (C), respectively are x, y, z. The sum of x, y, z is ______.
(A) Na4[Fe(CN)5(NOS)]
(B) Na4[FeO4]
(C) [Fe2(CO)9]
In which of the following species oxidation number of the element(s) is equal to + 4?
In which of the following species, the oxidation number of the atom of the underlined elements is/are equal to +1?
