NEET2018Chemistry-Chemical Bonding
NEET 2018 Chemistry Molecular Structure MCQ Question
Type: MCQ-conceptual-Medium-Class 11
Which one of the following elements is unable to form MF₆³⁻ ion?
A
Ga
B
Al
C
B
D
In
Correct Answer
Option C
Detailed Explanation
Boron (B) is unable to expand its octet due to the absence of d-orbitals, thus it cannot form MF₆³⁻ ions.
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