Which of the following statements is/are correct?

Options

A. If three `Fe^(2+)` ions are missing from their lattice in`FeO`, then there must be two `Fe^(3+)` ions somewhere in the lacttice.
B. Crystals with metal deficiency defects are called super conductors.
C. Crystals with metal deficiency are called semiconductors.
D. `1` Bohr Magneton `= 9.27 xx 10^(-24) A m^(2)`

Answer

A, C, D