Ncert Exercises & Solutions

The exhibition of the highest coordination number depends on the availability of vacant orbitals in the central atom. Which of the following elements is not likely to act as a central atom in ${MF}_{6}^{3 -}$ ?

1. B

2. Al

3. Ga

4. In

Hint: The second-period element does not form six coordinated complex

The lowest atomic number among the given is boron. Boron has atomic number 5 and does not have a vacant d-orbital. The element M is the complex ion

{MF}_{6}^{3 -}

has a coordination number of six. Boron can show a maximum coordination number of 4. Thus, B can not form a complex of the type

{MF}_{6}^{3 -}

NEET Information

courses

Company

Botany Questions

Chemistry Questions

Physics Questions

Zoology Questions