Which one of the following is not the use of graphite ?
Correct answer: B. Abrasive
- A. Lead pencils
- B. Abrasive
- C. Lubricant
- D. Electrode of electrolytic cell
Explanation
Graphite is used in pencil leads, as a lubricant, and as an electrode because its layered structure allows the layers to slide and its delocalised electrons conduct electricity. Abrasives are usually hard materials such as diamond or silicon carbide, so “abrasive” is not a normal use of graphite.
Last updated
About Reactions of Group IV Elements
Group IV, or Group 14, chemistry covers the trends from carbon and silicon to tin and lead, including their reactions with oxygen, halogens, water, acids and alkalis. It also examines the structures and properties of their oxides and chlorides, oxidation states, and the inert pair effect, rather than treating all members as equally metallic.
Practise s-Block and p-Block Elements
1,359 free s-Block and p-Block Elements MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.