A) 1,2
39. (v21-102-20) Quyidagi kimyoviy ozgarishlar sxemasida barcha reaksiyalar oksidlanish-qaytarilish reaksiya qatoriga kiradi Cr203 ——> ... ——Cr(N03)3.
1)C, HN03; 2) HCI, AgN03;
3) H2, HN03; 4) CO, N205 A) 1,2 B) 2, 4
C)1,3
D) 3, 4
A) 1,2
39. (v21-102-20) Quyidagi kimyoviy ozgarishlar sxemasida barcha reaksiyalar oksidlanish-qaytarilish reaksiya qatoriga kiradi Cr203 ——> ... ——Cr(N03)3.
1)C, HN03; 2) HCI, AgN03;
3) H2, HN03; 4) CO, N205 A) 1,2 B) 2, 4
C)1,3
D) 3, 4
Ответ: |
Сборник: Kimyo
Параграф:
58. Anorganik birikmalarning sinflari orasidagi genetik bog‘lanish
DTM тестирование онлайн | DTM test online