Question:

In potash alum, potassium and aluminium are present as

Updated On: Jul 6, 2022
  • simple cations
  • metal atoms
  • $\ce{[K (H_2O)_6]^{+}}$ and $\ce{ [Al (H_2O)_6]^{3+}}$ ions
  • none of these
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The Correct Option is C

Solution and Explanation

In potash alum, $ {K^{+}}$ and $ {Al^{3+}}$ are present as hexaaquo complex ions such as $ {[K(H_2O)_6]^{+}}$ and $ {[Al(H_2O)_6]^{3+}}$ions.
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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: