Question:

Very pure $N_2$ can be obtained by

Updated On: Apr 2, 2024
  • Thermal decomposition of ammonium dichromate
  • Treating aqueous solution of $NH_4Cl$ and $NaNO_2$
  • Liquifaction and fractional distillation of liquid air
  • Thermal decomposition of sodium azide
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The Correct Option is D

Solution and Explanation

$2 NaN _{3} \stackrel{\Delta}{\longrightarrow} 2 Na _{( s )}+\underset{\text { Pure }}{3 N _{2( g )}}$
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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: