B Bijay Kumar 🎓 Tutor III ⭐ 5.24K Points 📊 Science Q. Which gas is responsible for swelling of bread? (A) Oxygen (B) Carbon monoxide (C) Carbon dioxide (D) Ammonia 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (A) Oxygen You must be Logged in to update hint/solution 💬 Discussion 💬 Comment