dtm yakshanba-2.

royal education o’quv markazi: kamoliddin xolboyev kimyo. 1. kimyoviy jarayonlarda… 1) atomlar o’zgaradi molekulalar emas 2) molekulalar o’zgaradi atomlar emas 3) atomlar ham molekulalar ham o’zgaradi 4) elektron soni o’zgaradi, yadro tarkibi emas a) 1,4 b) 2 c) 1,2,3,4 d) 2,4 2. suv to’la bug’lansa, quyidagilardan qaysi(lar) o’zgarmaydi? 1) massasi 2) tarkibi 3) miqdori 4) hajmi a) 1,2,3,4 b) 1,2,3 c) 2,3 d) 2 3. fe2+ ionidan 4 marta kam elektronga ega bo’lgan e-1 ioni qaysi elementga tegishli? a) c b) n c) b d) o 4. etan gomologlarini belgilang. 1) propan 2) izobutan 3) butan 4) 2-metilbutan a) 1,2,3,4 b) 1,3,4 c) 1,3 d) 2,3,4 5. qaysi alkanning eng yaqin ikkita gomologlarini molyar massalari yig’indisi 172 g/mol? a) geksan …

This file contains 2 pages in DOCX format (33.5 KB). To download "dtm yakshanba-2.", click the Telegram button on the left.