Question:

Which one of the following properties of white phosphorus are shared by red phosphorus ?

Updated On: Jul 7, 2022
  • It dissolves in $CS_2$
  • It burns when heated in air
  • It reacts with NaOH to give $PH_3$
  • It phosphorescences in air
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The Correct Option is B

Solution and Explanation

Factual statement.
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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: