WAEC Chemistry 2022 Objective — Question 22
Question 22 of 50 from the West African Examinations Council (WAEC) Chemistry 2022 Objective paper, with the correct answer and a full explanation.
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Graphite is used as a dry lubricant due to the presence of
- A. mobile electrons
- B. free electrons
- C. octahedral structures
- D. layered structuresCorrect
Explanation
Graphite's use as a dry lubricant is due to its layered structure, where the layers can slide over one another when a shearing force is applied.
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