8-sinf 1- variant Monitoring testi

8-sinf 2- variant Monitoring testi

1 .Atomning massasi nimaga teng ? A)Proton B)Neytron C)Elektron D)A vaB javoblar to’g’ri

2. Kichik davrlar qaysilar? A)1;2;3; B)5;6;4; D)1;5;9; C)4;5;6;

3. Radioaktivlikning nechta turi bor? A)1 B)2 C)3 D)4

4.Asosli oksidlarga qaysilar kiradi? A)Na₂O B)CO₂ C)P₂O₅ D)Na₂O₂

5.Quyidagi birikmalardan qaysi biri qutbsiz kovalent bog’lanishga ega? A)HF B)KF C)F₂ D)CO₂

6. Bug` holatidagi moddaning va har qanday gazning 2 moli n.sh da qancha hajimni egallaydi? A)44.5I B)22.4l C)55.5l D)65.9l

7.Avagadro doimiysi nechaga teng? A) 6.02*10²³ B)6.02*10²⁰ C)6.02*10²¹ D)6.02*10¹⁹

8.12 gr uglerodda nechta atom bor? A)6.09*10²³ B)6.02*10²³ C)6.02*10²⁵ D)6.02*10²⁰

9. 16 gr SO₂ qancha hajmni egallaydi? A)5.6 l B)6.5 I C) 9.5 l D) 68.3 l

10.Kimyoviy elementlar sistemasida nechta guruh bor? A) 8 ta B) 9 ta C) 10 ta D) 7 ta

11.Kimyoviy elementlarning tartib raqami shu elementning qanday xossasini bildiradi?_________

12 …3d⁵ 4s¹ elektron fo`rmulasi bilan tugaydigan elementni aniqlang.___________________

13. . Fosfat kislotada fosforning oksidlanish darajasi nechiga teng? ______________________

14. D. I .Mendeleyev davriy jadvalni qachon kashf etgan? __________________________

15 . Kristall panjara turlari necha xil? __________________________________________