If AgCl can be prepared via the following reaction: 2Ag_(S) +Cl_z(g) rightarrow

Question

If AgCl can be prepared via the following reaction: 2Ag_(S) +Cl_z(g) rightarrow 2AgCl_(S) What are the roles of the: Ag and Cl_2 in this reaction? Classify AgCl as a covalent or ionic compound? What is the electron configuration of "Ag" in AgCl? What is the electron configuration of Ag metal? What principle does the electron configuration of Ag metal appear to violate? Comment on the relative covalent nature of bonding in AgCl, Agl, AgBr. (i.e., which has the most and least covalent bonding.) Be sure to justify and explain your answer.

Explanation / Answer

i) Ag = reducing agent, Cl2 = Oxidising agent.

ii) AgCl is covalent in character.

iii) In AgCl, Ag+ ion is present and electronic configuration of Ag+ ion is = [Kr] 4d10 5s0

iv) electronic configuration of Ag Metal = [Kr] 4d10 5s1

v) Aufbau principle.

vi) According to Fajan's rule smaller cation and larger anion makes the compound is more ionic.

so that AgI is least covalent than AgBr which is least covalent than AgCl.(AgCl is more covalent)

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