Q: Which one of the following statements is not correct?
(a)Most carbon compounds are good conductors of electricity.
(b)Bonding in organic compounds is covalent.
(c)Graphite is used as a lubricant.
(d)Diamond is an allotrope of carbon.
Correct Answer: (a)
The correct answer is (c) 'Graphite is used as a lubricant.'. This question from the Science & Technology domain tests knowledge of Chemistry.