Question
Download Solution PDFWhich of the following is least ionic ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
Ionic Character in Compounds
- Ionic character is determined by the difference in electronegativity between the atoms involved in the bond. A larger difference generally means more ionic character.
- However, the polarizing ability of the cation can decrease the ionic character, increasing the covalent character instead.
EXPLANATION:
- BaCl2 (Barium Chloride): Highly ionic due to the significant electronegativity difference between Ba and Cl and the low polarizing power of Ba2+.
- CoCl2 (Cobalt(II) Chloride): Less ionic than BaCl2 due to the presence of Co2+, a transition metal cation with some polarizing ability, leading to partial covalent character.
- AgCl (Silver Chloride): Least ionic among the options because Ag+ has a high polarizing power, leading to significant covalent character.
- KCl (Potassium Chloride): Highly ionic because K+ is an alkali metal with low polarizing power, and there is a significant electronegativity difference between K and Cl.
CONCLUSION:
The correct answer is AgCl.
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