Which of the following solids is not an electrical conductor?
1. Mg(s) 2.TiO(s) 3.I2 (s) 4. H2O (s)
(a) Only 1 (b) Only 2 (c) 3 and 4 (d) 2,3 and 4
Which of the following solids is not an electrical conductor?
1. Mg(s) 2.TiO(s) 3.I2 (s) 4. H2O (s)
(a) Only 1 (b) Only 2 (c) 3 and 4 (d) 2,3 and 4
Answer: (c) 3 and 4
The iodine is a non-polar molecular solid in which iodine molecules are held together by London force or dispersion force. This is a non-conductor of electricity.
Water is a hydrogen-bonded molecular solid in which H and O are held together by a polar covalent bond and each water molecule is held together by hydrogen bonding. Due to their non-ionic nature, they are not an electrical conductor.
Mg is a metallic solid, it will conduct electricity due to free electrons. TiO is an ionic solid which is a conductor in a molten state and in aqueous solutions.
Answer: (c) 3 and 4
The iodine is a non-polar molecular solid in which iodine molecules are held together by London force or dispersion force. This is a non-conductor of electricity.
Water is a hydrogen-bonded molecular solid in which H and O are held together by a polar covalent bond and each water molecule is held together by hydrogen bonding. Due to their non-ionic nature, they are not an electrical conductor.
Mg is a metallic solid, it will conduct electricity due to free electrons. TiO is an ionic solid which is a conductor in a molten state and in aqueous solutions.
