Question:

For the isolation of inert gases from air, the nitrogen and oxygen present are removed bypassing air over heated

Updated On: Jul 6, 2022
  • Calcium carbide
  • Copper metal
  • Activated charcoal
  • Finely divided mixture of Pt and Pd
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The Correct Option is A

Solution and Explanation

Oxygen and nitrogen present in air can be removed by strongly heating with calcium carbide $ {CaC_2 + N_2 ->[\Delta ] CaCN_2 + C}$ $ {2C + O_2 ->[\Delta] 2CO}$
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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: