which of the following is not a hard acid ?
Answers
Answer:
Ag+, Au+, Cd2+, CdR+, Co(CN)53-, Cs+, Cu+, GaMe3, GaCl3, GaI3, Hg+, Hg22+, Hg2+, HgR+, InCl3, metal atoms, Pd(PAr3)2, Pd(PAr3)2 2+, Pd2+, Pt2+, Pt4+, Tl+, Tl3+, TlMe3
Answer: A soft acid is typically defined as an electron-rich species that donates electrons readily, whereas a hard acid is defined as an electron-deficient species that accepts electrons with difficulty.
From the list you've provided, it appears that "ammonia" (NH3) is not a hard acid. Ammonia is considered a soft base because it has an electron-rich nitrogen atom that can readily donate electrons. In contrast, hard acids have an electron-deficient character and tend to be more covalent in nature.
Here are some examples of hard acids:
Hydrogen ions (H+)
Aluminum ions (Al3+)
Beryllium ions (Be2+)
Chromium ions (Cr3+)
Iron ions (Fe2+, Fe3+)
Magnesium ions (Mg2+)
Zinc ions (Zn2+)
Bromine (Br2)
Chlorine (Cl2)
Fluorine (F2)
These species are considered hard acids because they are electron deficient and have a tendency to accept electrons with difficulty, making them highly covalent in nature.
Learn more about hard acids here
https://brainly.in/question/46338857
Learn more about soft acids here
https://brainly.in/question/6767629
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