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which of the following solids is not...

which of the following solids is not an electrical conductor ?
(a) Mg(s) (b) TiO(s) ( c) `I_(2)(s)` (d) `H_(2)O(s)`

A

Only 1

B

Only 2

C

3 and 4

D

2,3 and 4

Text Solution

Verified by Experts

The correct Answer is:
C
Iodine is a non-polar molecular solid in which iodine molecules are held together by London force or dispersion force. This is soft and non-conductor of electricity. Water is hydrogen bonded molecular solid in which H and O are held together by polar covalent bond and each water molecule held together by hydrogen bonding. Due to non-ionic nature, they are not electrical conductor.
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