MCQ Practice Science 📖 Which is gaseous at NTP? ক Butaneখ Haptaneগ Hexaneঘ Pentane Favorite Practice Add to Book Explanation & Answer Detailed explanations and answers are restricted. Unlock full access by logging in to your account. 🔒 Unlock the detailed explanation and answers Log In / Sign Up Previous ‘থিওরি অব রিলেটিভিটি’ এর প্রণেতা-