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romanna [79]
2 years ago
14

Which one of these compounds listed below is least likely to exist, and why?NaBr HgCl2 ArCl Mg3N2 C3H8 CaO

Chemistry
1 answer:
Ivanshal [37]2 years ago
8 0

Argon chloride, ArCl is least likely to exist.

Argon belongs to the noble gas family. It has an atomic number of 18 and a valence electron configuration: 3s²3p⁶. Since the valence shell is completely filled i.e. it already has an octet configuration, this makes it stable and chemically inert. When approached closely by another element, Cl in this case, the fully filled valence shell of Ar would repel the incoming electron cloud. The only bond that could exist is the extremely weak, long-range Vander-Waals bond between Ar and Cl.

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Consider this reaction: NH4 HPO42− → NH3 H2PO4− Which is the Bronsted-Lowry acid ? NH4 HPO42- HPO42– H2PO4–.
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Bronsted - Lowry acid in the given reaction is NH₄, as it gives H⁺ ion.

<h3>What is Bronsted - Lowry acid?</h3>

According to the theory of Bronsted - Lowry, acids are those substances which gives H⁺ ion or proton in the aqueous medium.

Given chemical reaction is :

NH₄ + HPO₄²⁻ → NH₃ + H₂PO₄⁻

In the above reaction NH₄ is the Bronsted - Lowry acid as it gives H⁺ ion in the reaction and changes to NH₃ which is the conjugate base of NH₄. Whereas HPO₄²⁻ is the  Bronsted - Lowry base as it accepts the H⁺ ion to form H₂PO₄⁻ which is the conjugate acid of it.

Hence, option (1) is correct, i.e. NH₄ is the Bronsted - Lowry acid.

To know more about Bronsted - Lowry acid, visit the below link:

brainly.com/question/1435076

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