প্রথম অধ্যায়-রসায়নের ধারনা
NT Bangla: This video contains the first chapter of ninth grade chemistry - a detailed discussion of the chemistry of chemistry. The video is full of ideas about chemistry and important information. Which will play an important role in the students' talent development. Those who have not yet subscribed to this channel subscribe to me very soon and like if the video is good and Share it.
রসায়নের ধারনা- 9-10 -প্রথম অধ্যায়-Chemistry Chapter 1- Part – I36:15