Maximum covalent character is associated with the compound: [RPMT 1999]
A. NaI
B. MgI2
C. AlCl3
D. AlI3
Answer:D
Maximum covalent character is associated with the compound: [RPMT 1999]
A. NaI B. MgI2 C. AlCl3 D. AlI3
Explanation: Among cations, Al3+ has smaller size and greater charge hence it has greater polarizing power. Among anions, iodide (I-) is larger and hence can be polarized easily. Hence the combination of these two ions i.e. Al3+ and I- results in more covalent nature.