Question:
Which of the following halides is the most acidic ?
Which of the following halides is the most acidic ?
Updated On: Jul 7, 2022
- $PCl_3 $
- $SbCl_3 $
- $BiCl_3$
- $CCl_4$
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The Correct Option is A
Solution and Explanation
$CCI_4$ cannot accept a lone pair of electron. As such it is not a Lewis acid. Acid strength of trichlorides is in the order
$PCl_3 > AsCl_3 > SbCl_3$
Thus $PCl_3$ is more acidic than $SbCl_3$
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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:
- Group 13 Elements: Boron family
- Group 14 Elements: Carbon family
- Group 15 Elements: Nitrogen family
- Group 16 Elements: Oxygen family
- Group 17 Elements: Fluorine family
- Group 18 Elements: Neon family