R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Science Q. Which of the following is used as a lubricant? (A) Graphite (B) Silica (C) Diamond (D) Iron Oxide 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) Graphite You must be Logged in to update hint/solution 💬 Discussion 💬 Comment