Question:
In which of the following oxidation state of phosphorous is +3?
In which of the following oxidation state of phosphorous is +3?
Updated On: Jun 7, 2022
- Orthophosphoric acid
- Pyrophosphoric acid
- Orthophosphorous acid
- Metaphosphoric acid
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The Correct Option is C
Solution and Explanation
Orthophosphoric acid $H_{3}P^{+5}O_{4}$
Pyrophosphoric acid $H_{4}P^{+5}_{2}O_{7}$
Orthophosphorous acid $H_{3}P^{+3}O_{3}$
Metaphosphoric acid $HP^{+5}O_{3}$
Thus, orthophosphoric acid has +3 oxidation state
Pyrophosphoric acid $H_{4}P^{+5}_{2}O_{7}$
Orthophosphorous acid $H_{3}P^{+3}O_{3}$
Metaphosphoric acid $HP^{+5}O_{3}$
Thus, orthophosphoric acid has +3 oxidation state
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Concepts Used:
P-Block Elements
- P block elements are those in which the last electron enters any of the three p-orbitals of their respective shells. Since a p-subshell has three degenerate p-orbitals each of which can accommodate two electrons, therefore in all there are six groups of p-block elements.
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- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family