Uy » Attestatsiya testlar » Kimyo attestatsiya » Kimyo attestatsiya №14 Kimyo attestatsiya Kimyo attestatsiya №14 InfoMaster Fevral 16, 2023 161 Ko'rishlar 1 izoh SaqlashSaqlanganOlib tashlandi 6 0% 0 123456789101112131415161718192021222324252627282930313233343536373839 OMAD YOR BO'LSIN! Kimyo fanidan attestatsiya savollari №14 2022-yil 14-aprelda tushgan savollar 1 / 39 1. II valentli metall sulfidi tarkibida oltingugurt bilan metallning massa nisbatlari 1:2 bo‘lsa, metallning ekvivalentini aniqlang. A) 32 B) 12 C) 68.5 D) 56 2 / 39 2. Cl¯→F¯→J¯→Br¯ qatorida oksidlovchilik xossasi qanday o’zgaradi? A) kamayadi, kamayadi, kamayadi. B) ortadi, kamayadi, ortadi. C) kamayadi, ortadi, kamayadi. D) ortadi, ortadi, ortadi. 3 / 39 3. H₂SO₄ eritmasining (p=1,4 g/ml) foiz va molyar konsentratsiyalari nisbatini aniqlang. A) 7:1 B) 4:1 C) 8,5:1 D) 1,4:1 4 / 39 4. Noma’lum element tarkibida 35,3% neytron (jami elementar zarrachaga nisbatan) mavjud. Undagi proton va elektronlar yig'indisi neytronlar rg'indisidan 10 taga ortiq bo'lsa, noma’lum eiementni aniqlang. A) Na B) Br C) F D) Ne 5 / 39 5. Reaksiyaning tezligini 81 marta oshirish uchun temperaturani 80±C dan necha gradusgacha ko‘tarish kerak (° = 3)? A) 80 B) 160 C) 100 D) 120 6 / 39 6. xMn va yCr atomlari o’zaro izoton bo’lsa, X va Y lar uchun quyidagi munosabatlardan qaysi biri o’rinli hisoblanadi? A) x=y+1 B) x=y-1 C) y=x D) y=x+1 7 / 39 7. 5 litr hajmli idishda A + В → С + D reaksiyaning 10°C dagi tezligi 0,6 mol/(l–min) . 50°C da esa 4 mol D modda 5 sekundda hosil bo‘lsa, reaksiyaning temperature koeffeiyentini ( γ )aniqlang. A) 1.5 B) 3 C) 2 D) 2.5 8 / 39 8. Suv 273°C va 273°K da qanday agregat holatda bo‘ladi? A) gaz; qattiq B) suyuq; gaz C) gaz; suyuq D) gaz; gaz 9 / 39 9. Ruda gazi formulasini toping? A) to’g’ri javab yo’q B) H2S C) N2O 10 / 39 10. Qizil fosfor qanday kristal panjaraga ega?. A) ion B) Atom C) molekulyar D) metall 11 / 39 11. 127ºC da reaksiyaning tezligi 0,8 mol/(l∙s) ga teng. Temperatura 5 % ga oshirilsa, reaksiya tezligi (mol/(l∙s)) qanday bo‘ladi? (γ=2) A) 2,4 B) 1,6 C) 4,8 D) 3,2 12 / 39 12. 98 g metilsiklogeksandan 46 g toluol olingan bo’lsa, reaksiya unumini toping. A) 25 B) 50 C) 75 D) 80 13 / 39 13. Propinga suv tasir ettirilsa qanday moddalar hosil bo’ladi? A) CH3CH2COCH2CH3: B) CH3COCH3: C) CH3COCH2CH3: D) C2H5COC3H7 14 / 39 14. 2 mol 1.5 dibrom pentanni siklopentanga almashtirish uchun necha gram rux kerak? A) 104 g B) 65 g: C) 130 g: D) 150 g 15 / 39 15. Propinga suv tasir ettirilsa qanday moddalar hosil bo’ladi? A) C2H5COC3H7 B) CH3CH2COCH2CH3: C) CH3COCH2CH3: D) CH3COCH3: 16 / 39 16. FeSO4+KMnO4+H2SO4--->Fe2(SO4)3+MnSO4+K2SO4+H2O reaksiyada 2 mol oksidlovchi sarflangan bòlsa necha gr suv hosil bòlgan A) 72 B) 18 C) 144 D) 36 17 / 39 17. Sirka kislotadagi uglerod atomlarining oksidlanish darajalarning yig’indisi nechiga teng? A) +2: B) -3: C) -2: D) 0:00 18 / 39 18. 2 M li H2SO3 ni normalligini hisoblang A) 2 B) 0.4 C) 4 D) 0.2 19 / 39 19. Pirolyuzitning 0,3 molining massasi? A) 261 B) 26.1 C) 20.1 D) 201 20 / 39 20. 134.4 gr metal HCl bilan reaksiyaga kirishganda 11.2 gr H2 ajralib chiqdi.Reaksiyaga kirishgan metallmi aniqlang. A) Ca B) Mg: C) Al: D) Fe: 21 / 39 21. Qanday massadagi 20% li KOH eritmasiga 80 gr suv qòshilganda 8% li ishqor eritmasi hosil bòladi A) 58.33 B) 56 C) 112 D) 53.33 22 / 39 22. Geterozanjirli polimerlar nomlarini aytib bering? A) Oltingugurtli polimerlar B) Element organik polimerlar: C) Kislorodli polimerlar D) O, S,N element organik polimerlar: 23 / 39 23. Glukoza vodorod bilan tasirlashganda uning aldegid guruhi qaytariladi va qanday moddalar hosil bo’ladi? A) C6H12O6+H2---C6H14O8(sorbent 6 atomli spirt): B) C6H12O6+H2---C6H14O7(sorbent 6 atomli spirt): C) C6H12O6+H2---C6H15O7(sorbent 6 atomli spirt): D) C6H12O6+2H2---C6H14O9(sorbent 6 atomli spirt): 24 / 39 24. Sorbit haqida malumot bering. A) glukozaning vodorod yordamida qaytarilish mahsuloti(ya’ni 6-atomli spirt)C6H12O6+H2---C6H14O7: B) glukozaning vodorod yordamida qaytarilish mahsuloti(ya’ni 6-atomli spirt)C6H22O6+H2---C6H14O6 C) glukozaning vodorod yordamida qaytarilish mahsuloti(ya’ni 6-atomli spirt)C6H12O6+2H2---C6H14O6: D) glukozaning vodorod yordamida qaytarilish mahsuloti(ya’ni 6-atomli spirt)C6H12O6+H2---C6H14O6: 25 / 39 25. (H2O)5 zarracha tarkibida nechta vodorod bog’ bor? hisoblash formulasi : (n-1)*2 A) 32 ta B) 4 ta: C) 8 ta: D) 16 ta: 26 / 39 26. Geterozanjirli polimerlar nomlarini aytib bering? A) O, S,N element organik polimerlar: B) Kislorodli polimerlar C) Oltingugurtli polimerlar D) Element organik polimerlar: 27 / 39 27. Sorbit haqida malumot bering. A) C6H12O6+H2---C6H14O6: B) C6H12O6+H2---C6H14O6: C) C6H12O6+2H2---C6H16O6 D) 2C6H12O6+H2---2C6H14O5: 28 / 39 28. Sorbit haqida malumot bering. A) C6H12O6+2H2---C6H16O6 B) 2C6H12O6+H2---2C6H14O5: C) C6H12O6+H2---C6H14O6: D) C6H12O6+H2---C6H14O6: 29 / 39 29. CnH2n+2 → CmH2m+2 + CkH2k formula uglevodorodlar krekingiga taalluqli bo’lib n=6 ga teng bo’lganda m va k ning qiymatlarini toping? A) 1)m=5,k=3 2)m=3,k=2 3)m=2,k=4 4)m=1,k=5 B) 1)m=4,k=2 2)m=3,k=3 3)m=2,k=4 4)m=2,k=6: C) 1)m=4,k=2 2)m=2,k=1 3)m=2,k=4 4)m=1,k=5: D) 1)m=4,k=2 2)m=3,k=3 3)m=2,k=4 4)m=1,k=5: 30 / 39 30. Teng hajmda olingan azot va vodorod reaksiyasi natijasida 0,3 mol ammiak hosil bòlsa ortib qolgan gaz hajmini toping A) 2.24 B) 6.72 C) 8.96 D) 4.48 31 / 39 31. 125 gr 32% li NaOH eritmasini tayorlash uchun necha gr natriy kerak A) 32 B) 23 C) 64 D) 46 32 / 39 32. Argentit formula? A) AgNO3 B) Ag2S C) Cu2S D) AgSO4 33 / 39 33. 2 mol 1.5 dibrom pentanni siklopentanga almashtirish uchun necha gram rux kerak? A) 150 g B) 104 g C) 130 g: D) 65 g: 34 / 39 34. Fotosintez jarayonida karbonat angidriddan qaysi modda hosil bo’ladi. A) 6CO2+6H2O2 = C6H12O6 + 6O2: B) 6CO2+6H2O = C6H12O6 + 6O2 + CO2: C) 6CO2+6H2O = C6H12O6 + 6O2: D) 7CO2+7H2O = 3.5C6H12O6 + 5O2 35 / 39 35. Quyidagilarni qaysi biri litiy bilan xona haroratida reaksiyaga kirishadi? A) S B) NO C) HNO3 D) N2: 36 / 39 36. 7.8 gr nomalum metall gidroksidi qizdirilganda 5.1 gr metall oksidi hosil bo’lsa metalni aniqlang. A) Ni B) Al: C) Fe: D) Co 37 / 39 37. Al(OH)3 va H2SO4 dan necha xil tuz hosil bòladi A) 4 B) 2 C) 5 D) 3 38 / 39 38. 500 gr 23% K2CO3 eritmasidan necha amper tok o’tganda 4825 min davomida K2CO3 ning massa ulushi 50% ga teng bo’ladi. A) 10A: B) 12A C) 9A D) 5A 39 / 39 39. 18,8 gr H2SO4 eritmasida 2,2 NA atom bòlsa eritmadagi sulfat massasini toping A) 9.8 B) 19.6 C) 196 D) 98 0% Testni qayta ishga tushiring Fikr-mulohaza yuboring Author: InfoMaster Foydali bo'lsa mamnunmiz
