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Grade: upto college level
Among the following the maximum covalent character is shown by the compound
a. FeCI2
b. SnCI2
c. AICI3
d. MgCI2
3 years ago

Answers : (1)

Deepak Patra
askIITians Faculty
474 Points

(c) The proportion of covalent character in an ionic bond is decided by polarisability of the metal cation as well as the electronegativity of both elements involved in bonding. Polarisability is further decided by the density of positive charge on the metal cation. AICI3 is considered to show maximum covalent character among the given compounds. This is because Al 3 + bears 3 unit of positive charge and shows strong tendency to distort the electron cloud, thus the covalent character in Al-CI bond dramatically increases.

3 years ago
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