Davlat test markazi repetitsion test topshiruvchilar uchun test topshiriqlar

6. 5f dan keyin qaysi energetik pog‟onacha elektron bilan to‟lib boradi?

A) 6d B) 5d C) 6s D) 7s

7. 1, 5 mol miqdordagi ammiak malekulasidagi vodorod atomlar sonini hisoblang.

A) 9, 0310²³ B) 2, 710²⁴

C) 5, 610²³ D) 2710²²

8. Metall, kovalent va ion bog‘lanishli moddalar ketma-ketligini toping.

A) N₂ , BaF₂ , BaSO₄ B) Li, Na₃N, MgS

C) Au, CH₄, NaCl D) 0₃, N₂0₅, Li₃PO₄

9. Murakkab moddalar qatorini ko‘rsating.

A) ammiak, metan, gematit

B) ozon, xlor, qaldirroq gaz

C) oq fosfor, margans, malaxit

D) oxaktosh, magniy, kaliy

10. Faqat oddiy moddalar keltirilgan qatorni toping?

A) ozon, kislorod, olmos, vodorod xlorid

B) olmos, ozon, grafit, karbit

C) uglerod, kislorod, vodorod, ammiak

D) olmos, ozon, karbin, grafit

11. Xlorid kislotaning 10% li 200 g va 40% li 300 g eritmalari aralashtirilganda hosil bo‘ladigan eritmaning foiz (%) kontsеntratsiyasini aniqlang.

A) 8 B) 26 C) 28 D) 9, 8

12. SO₂ va SO₃ molеkulalaridagi oltingugurt atomining gibridlanish turini va molеkula gеomеtriyasini aniqlang.

1) sp; 2) sp²; 3) sp³; 4) chiziqli; 5) burchakli; 6) tеng tomonli uchburchak;

7) uchburchakli piramida.

A) 1, 4 va 2, 5 B) 1, 5 va 3, 7 C) 2, 5 va 2, 6 D) 2, 4 va 3, 7

13. Qaysi qatorda elementlarning ionlanish potensiali kamayib boradi.

A) Ba, Sr, Ca, Mg, Be B) B, C, N, O, F

C) Li, Na, K, Cs, Fr D) Cl, S, Si, P, Al