Which of the following solids is not an electrical conductor? (A) Mg (s) (B) TiO (s) (C) I2 (s) (D) H2O (s) (i) (A) only (ii) (B) Only (iii) (C) and (D) (iv) (B), (C) and (D)
Option 3) I2(s) is a non-polar molecular solid and is an insulator. H2O(g) is a hydrogen bonded molecular solid and is an insulator. Mg is metallic solid and is a conductor in solid as well as in molten state. TiO is an ionic solid and is an insulator in solid state but is a conductor in molten state and in aqueous solutions
