Question:
Which among the following oxoacids of phosphorus shows a tendency of disproportionation?
Which among the following oxoacids of phosphorus shows a tendency of disproportionation?
Updated On: Feb 9, 2024
- Phosphinic acid $\ce{(H_3PO_2)}$
- Orthophosphoric acid $\ce{(H_3PO_4)}$
- Phosphonic acid $\ce{(H_3PO_3)}$
- Pyrophosphoric acid $\ce{(H_4P_2 O_7)}$
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The Correct Option is C
Solution and Explanation
Phosphonic acid $\left( H _{3} PO _{3}\right)$, oxoacid of phosphorus shows a tendency of disproportionation. On heating $H _{3} PO _{3}$ disproportionates to give orthophosphoric acid and phosphene gas.
$4 H _{3} PO _{3} \stackrel{ \Delta }{\longrightarrow} 3 H _{3} PO _{4}+ PH _{3}$
$4 H _{3} PO _{3} \stackrel{ \Delta }{\longrightarrow} 3 H _{3} PO _{4}+ PH _{3}$
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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.
- P block elements are shiny and usually a good conductor of electricity and heat as they have a tendency to lose an electron. You will find some amazing properties of elements in a P-block element like gallium. It’s a metal that can melt in the palm of your hand. Silicon is also one of the most important metalloids of the p-block group as it is an important component of glass.
P block elements consist of:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family