Question:

Which of the following is the most basic oxide ?

Updated On: Oct 13, 2023
  • Al2O3 
  • Sb2O3
  • Bi2O3
  • SeO2 
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The Correct Option is C

Solution and Explanation

Basic oxides are oxides that react with water to form a base (alkaline solution) when dissolved. Bismuth (III) oxide (Bi2O3) is a basic oxide that reacts with water to form a basic solution.

So, the correct option is (C): Bi2O3

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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: