Question:

Which of the following statements is not true for halogens?

Updated On: Apr 17, 2024
  • Chlorine has the highest electron-gain enthalpy.
  • All form monobasic oxyacids.
  • All but fluorine show positive oxidation states
  • All are oxidizing agents
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The Correct Option is B

Solution and Explanation

Fluorine shows only 1 oxidation state and other halogen shows negative and positive oxidation state. Due to high electronegativity and small size only F form one oxoacid that is HOF.
Hence A is correct option because A is not true statement.
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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: