Which of the following solids is not an electrical conductor?
(A) Mg (s) (B) TiO (s) (C) (s) (D) (s)
(i) (A) only
(ii) (B) Only
(iii) (C) and (D)
(iv) (B), (C) and (D)
The answer is the option (iii) (C) and (D)
In molecules are soft and non-conductor of electricity.
Hydrogen is covalently bonded to more electronegative oxygen atom in water. Due to non-ionic nature, they do not dissociate in ions and cannot conduct electricity.