Question:

Which one of the following forms vortex ring?

Updated On: Jul 5, 2022
  • $P_{2}O_{5}$
  • $ PH_{3}$
  • $NH_3$
  • $P_{4}O_{10}$
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The Correct Option is B

Solution and Explanation

Phosphine when comes in contact with air, it forms vortex rings of $P _{2} O _{5}$ in the form of white smoke so it is used to prepare smoke screens in warfare. $2 PH _{3}+4 O _{2} \longrightarrow P _{2} O _{5}+3 H _{2} O$
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Concepts Used:

Group 15 Elements

Group 15 elements are also known as nitrogen group elements or nitrogen family

It consists of:

  • Nitrogen (N)
  • Phosphorus (P)
  • Arsenic (As)
  • Antimony (Sb)
  • Bismuth (Bi)
  • Moscovium (Mc)

They are present on the right side of the periodic table. All the elements are arranged based on their atomic weight. The elements with similar properties reside in a column called the group.

All Group 15 elements have the electron configuration ns2np3 in their outer shell, where n is the principal quantum number.

Periodic Trends in Group 15 Elements