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QNEET-2018-Ch-856: NEET 2018 Chemistry - Class 12 NEET-2018-Ch-856 Solution: Which one of the following elements is unable to form…
Which one of the following elements is unable to form ion? Ga Al B In
Multiple Choice Options
- A Ga
- B Al
- C B
- D In
Step-by-Step Verified Solution
Boron does not have vacant d-orbitals in
its valence shell, so it cannot extend its covalency
beyond 4. i.e., �B� cannot form the ions like MF 6 3� .