Question:

One of the acid listed below is formed from $P_2O_3$ and the rest are formed from $P_2O_5$. The acidformed from phosphorus (III) oxide is

Updated On: Jul 6, 2022
  • $HPO_3$
  • $H_4P_2O_7$
  • $H_3PO_4$
  • $H_3PO_3$
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The Correct Option is D

Solution and Explanation

$ { 2P_2O_3 + $\underset{\mathrm{Cold}}{ {6H_2O}}$ -> 4H_3PO_3}$
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Top Questions on p -Block Elements

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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: