R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Science Q. Which among the given is present in hard water? (A) Sodium (B) Chlorine (C) Calcium (D) Aluminium 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) Calcium You must be Logged in to update hint/solution 💬 Discussion 💬 Comment