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प्रश्न
Assign oxidation numbers to the underlined element in the following species:
NaHSO4
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उत्तर
| +1 | +1 | x | -2 |
| Na | H | S | O4 |
Then, we have
1(+1) + 1(+1) + 1(x) + 4(-2) = 0
⇒ 1 + 1 + x - 8 = 0
⇒ x = + 6
Hence, the oxidation number of S is + 6.
संबंधित प्रश्न
Assign oxidation numbers to the underlined element in the following species:
H4P2O7
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KI3
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.
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
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Calculate the oxidation number of sulphur atom in the following compounds:
\[\ce{Na2S2O3}\]
Calculate the oxidation number of sulphur atom in the following compounds:
\[\ce{Na2SO4}\]
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 |
Match Column I with Column II for the oxidation states of the central atoms.
| Column I | Column II | |
| (i) | Ions having positive charge | (a) +7 |
| (ii) | The sum of oxidation number of all atoms in a neutral molecule |
(b) –1 |
| (iii) | Oxidation number of hydrogen ion \[\ce{(H+)}\] | (c) +1 |
| (iv) | Oxidation number of fluorine in \[\ce{NaF}\] | (d) 0 |
| (v) | Ions having negative charge | (e) Cation |
| (f) Anion |
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(A) Na4[Fe(CN)5(NOS)]
(B) Na4[FeO4]
(C) [Fe2(CO)9]
Oxidation number of potassium in K2O, K2O2 and KO2, respectively, is ______.
