Uy » Attestatsiya testlar » Kimyo attestatsiya » Kimyo attestatsiya №14 Kimyo attestatsiya Kimyo attestatsiya №14 InfoMaster Fevral 16, 2023 148 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. Grafikka asoslanib 2SO2 (g) + O2 (g) = 2SO3 (g) reaksiyasining dastlabki tezligini (mol/l∙sek) aniqlang. (k = 0,8) A) 75 B) 150 C) 100 D) 125 2 / 39 2. C2O42– , MnO4– , PO43– ionlaridagi C, Mn, P ning oksidlanish darajalarini aniqlang. A) +4, +8, +8 B) +6, +7, +5 C) +3, +6, +5 D) +3, +7, +5 3 / 39 3. Nomalum valentli metalning teng miqdordagi ikki namunasi bilan kirishadigan konsentirlangan sulfat va juda suyultirilgan nitrat(N₂O chiqadi) kislotalarni mol nisbati qanday bo’ladi? A) 4:5 B) 6:7 C) 8:9 D) 2:1 4 / 39 4. II valentli metall sulfidida oltingugurt bilan metallning masa nisbati 2:7 bo’lsa, Metallni aniqlang. A) Mg B) Ba C) Cd D) Cu 5 / 39 5. Quyidagilardan qaysi birikmada xlorning atom radiusi eng kattaligini toping. A) KClO4 B) KClO3 C) KClO2 D) KClO 6 / 39 6. Quyidagi jadvaldan foydalanib yonaki guruh elementlarini aniqlang A) Y vaZ B) X vaY C) X, У, Z D) X vaZ 7 / 39 7. A(g) + 3B(g) = C(g) + 2D(g) reaksiyada A va В moddaning boshlang‘ich konsentratsiyalari mos ravishda 5 va 9 mol/l ga teng. 20 sekunddan so‘ng ularning konsentratsiyalari tenglashgan bo‘lsa, D moddaning hosil bo‘lish tezligini (mol/(l•s) ) hisoblang. A) 1.2 B) 0.2 C) 0.6 D) 0.1 8 / 39 8. Elementlar metallmaslik xossalari ortib borishi tartibida joylashtirilgan qatorni ko’rsating.1) kaliy2) kislorod 3) tellur 4) selen A) 4,1,2,3 B) 2,3,4,1 C) 1,3,4,2 D) 4,1,3,2 9 / 39 9. Xloridlardan xlor olish uchun marganetsning qanday birikmalaridan foydalaniladi? A) HMnO4, MnO B) K2MnO4, MnO C) KMnO4, MnO2 D) to’g’ri javab yo’q 10 / 39 10. SiO2 va CH4 molekulalari uchun qaysi xususiyatlar umumiy? 1) markaziy atomning gibridlanishi; 2) markaziy atomning valentligi; 3) molekulaning fazoviy strukturasi; 4) bog’ qutbli molekula qutbsiz bo‘lishi; 5) markaziy atomning oksidlanish darajasi. A) 1, 2, 5 B) 1, 3, 4 C) 3, 4, 5 D) 1, 2, 3, 4 11 / 39 11. Qaysi moddanining normalligi molyalligidan 3 marta katta ? A) MgCl₂ B) CaCl₂ C) KCl D) AlCl₃ 12 / 39 12. Quyidagi qaysi reaksiyada bosim 2 marta oshirilsa, reaksiya tezligi 8 marta oshadi? A) H2+Cl2=HCl B) CO2+C=CO C) СТИНА 13 / 39 13. Sirka kislotadagi uglerod atomlarining oksidlanish darajalarning yig’indisi nechiga teng? A) +2: B) -2: C) -3: D) 0:00 14 / 39 14. Argentit formula? A) Ag2S B) AgNO3 C) AgSO4 D) Cu2S 15 / 39 15. Mn3O4 ........ A) Qora tusli qattiq modda B) Qònģir tusli qattiq modda C) Suvda erimaydigan yashil tusli kukun 16 / 39 16. Etil spirit formulasini toping? A) C4H9OH B) C2H5OH: C) CH3OH D) C3H7OH 17 / 39 17. Propanol-2 dagi sp3, sp2 va sp gibridlangan orbitallar sonini toping A) 16;0;0 B) 16;3;0 C) 4;3;0 D) 4;0;0 18 / 39 18. 500 gr 23% K2CO3 eritmasidan necha amper tok o’tganda 4825 min davomida K2CO3 ning massa ulushi 50% ga teng bo’ladi. A) 9A B) 5A C) 10A: D) 12A 19 / 39 19. 7.8 gr nomalum metall gidroksidi qizdirilganda 5.1 gr metall oksidi hosil bo’lsa metalni aniqlang. A) Co B) Al: C) Fe: D) Ni 20 / 39 20. Quyidagi dienni nomlang: (CH3)3CCH=CH-CH=CH2 A) 5,5 di metil geksadien-1,3: B) 2,5 di metil geksadien-1,3: C) 2,2 di metil geksadien-1,3: D) 5,5 di metil geksadien-1,2 21 / 39 21. 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=4,k=2 2)m=3,k=3 3)m=2,k=4 4)m=2,k=6: B) 1)m=4,k=2 2)m=3,k=3 3)m=2,k=4 4)m=1,k=5: C) 1)m=4,k=2 2)m=2,k=1 3)m=2,k=4 4)m=1,k=5: D) 1)m=5,k=3 2)m=3,k=2 3)m=2,k=4 4)m=1,k=5 22 / 39 22. 0,2 mol fenol brom bilan reaksiyaga kirishganda reaksiyadan sòng 48,6 gr galogenvodorod hosil bòlgan bòlsa fenol halqasidagi vodorod bilan òrin almashgan atomlar miqdorini toping A) 6 ta B) 2 ta C) 1 ta D) 3 ta 23 / 39 23. 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 24 / 39 24. 125 gr 32% li NaOH eritmasini tayorlash uchun necha gr natriy kerak A) 46 B) 23 C) 64 D) 32 25 / 39 25. Unum 80% bo’lganda 150 gr nitroetandan qancha massada amin olish mumkin? A) 72 g: B) 36 g C) 18 g D) 144 g: 26 / 39 26. Propanol-2 dagi qutbli boģlarni qutbsiz boģlarga nisbatini toping A) 4,5;1 B) 2;4 C) 2;3 D) 9;3 27 / 39 27. 3.36 litr Cl2 sovuq KOH bilan reaksiyaga kirishgandagi hosil bo’lgan tuzlarning massalari ayirmasini toping? A) 2.5 farq: B) 2.4 farq: C) 2.3 farq D) 3.6 farq 28 / 39 28. 7.8 gr nomalum metall gidroksidi qizdirilganda 5.1 gr metall oksidi hosil bo’lsa metalni aniqlang. A) Fe: B) Ni C) Co D) Al: 29 / 39 29. Sirka kislotadagi uglerod atomlarining oksidlanish darajalarning yig’indisi nechiga teng? A) 0:00 B) -3: C) -2: D) +2: 30 / 39 30. Marganesning amfoter oksidlari tarkibidagi atomlarning mol nisbati qanday bòladi A) 2;3 B) 3;4 C) 1;2 D) 1;1 31 / 39 31. Maltoza va saxarozaning 171 gr aralashmasi gidroliz qilinganda hosil bo’lgan moddadan Ag2O o’tkazilganda 194,6 gr cho’kma hosil bo’lsa, aralashmadagi maltozaning massasini toping. A) 146,8 g B) 156,8 g: C) 136,8 g: D) 136,6 g 32 / 39 32. FeSO4+KMnO4+H2SO4--->Fe2(SO4)3+MnSO4+K2SO4+H2O reaksiyada 2 mol oksidlovchi sarflangan bòlsa necha gr suv hosil bòlgan A) 144 B) 72 C) 18 D) 36 33 / 39 33. Glukozani A.M. Butlerov usuli bo’yicha olinishida tarkibida 90 ta sp2 gibrid orbital tutgan reagent sarflandi. Hosil bo’lgan monosaxarid massasini gramda aniqlang? A) 180 B) 360:00:00 C) 480:00:00 D) 450:00:00 34 / 39 34. Silan va metan aralashmasining geliyga nisbatan zichligi 7 ga teng bo’lsa, aralashmadagi silanning hajmiy ulushini (%) da aniqlang? A) 66.7: B) 75:00:00 C) 25:00:00 D) 33.3: 35 / 39 35. 404,73 gr 10% li oltin(III)xlorid elektrolizida 2 A tok sarflangan bòlsa, ketgan vaqtni toping(sekundda) A) 96500 B) 19300 C) 400 D) 27400 36 / 39 36. Sintez gazi formulasi A) 2H2+O2 B) H2O C) CH4 D) CO+2H2 37 / 39 37. Geterozanjirli polimerlar nomlarini aytib bering? A) Element organik polimerlar: B) Oltingugurtli polimerlar C) O, S,N element organik polimerlar: D) Kislorodli polimerlar 38 / 39 38. 8% KOH tutgan 700 gr ishqor eritmasi tayyorlash uchun qancha miqdorda K kerak bo’ladi? A) 78:00:00 B) 39:00:00 C) 19.5 D) 58.5 39 / 39 39. Cr2(SO4)3 ekvivalenti? A) 65.33 B) 104 C) 392 D) 130.33 0% Testni qayta ishga tushiring Fikr-mulohaza yuboring Author: InfoMaster Foydali bo'lsa mamnunmiz
