ser-46
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Scroll down 👇![“rar” abituriyentlarni tayyorlash markazi uchun maxsus aprobatsiya _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 1 “rar med school” milliy sertifikat uchun variant. - 46 - abituriyentlarni tayyorlash markazi qarshi -2025 “rar” abituriyentlarni tayyorlash markazi uchun maxsus aprobatsiya _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2 kimyo-46 1. bir donda ioni uchun berilgan fikrlardan nechtasi xato? [1,0-ball] 1) ikki xil element saqlaydi; 2) 106 ta elektroni bor; 3) protonlari soni elektron sonidan 2 taga kam; 4) 9 ta atom saqlaydi; 5) xrom va kislorod atomlarining neytronlari soni teng. a) 1 b) 2 c) 3 d) 4 2. qizdirilgan magniyga suv bug`lari ta’sir ettirilsa qaysi sinfga mansub kimyoviy modda hosil bo`ladi? [1,0-ball] a) asos b) kislota c) tuz d) oksid 3. 3,8 g birikma yondirilganda 2,2 g uglerod (iv) oksid va 6,4 g oltingugurt (iv) oksid hosil bo`lsa, birikma formulasini toping. a) c2s8 [1,0-ball] b) c3s8 c) c3s4 d) cs2 4. uglerod atomi tinch va qo`zg`algan holatlarida nechta kovalent bog` hosil qiladi? [1,0-ball] a) …](/media/previews/pages/p1_290590.webp "ser-46 - Page 1")
![qaysi modda molekulasida ikki xil energiyali uchta σ- bog`lar mavjud? [1,0-ball] a) uglerod (ii) oksid b) fosgen c) ammiak d) dixlormetan 8. no2 + … + …→ hno3 reaksiyada 0,3 mol oksid sarflangan bo`lsa, hosil bo`lgan nitrat kislotani neytrallash uchun necha g natriy gidroksid kerak bo`ladi? [2,0-ball] a) 2 b) 4 c) 6 d) 8 9. reaksiya temperaturasi 20 o c ga pasaytirilganda jarayonning tugash vaqti 125 % ga ortdi. reaksiyaning temperature koeffitsiyentini (γ) toping. [2,5-ball] a) 1,5 b) 2 c) 2,5 d) 3 10. h2(g) + cl2(g) ↔ 2hcl(g) + q 1) bosim ortsa (t,n = const); 2) bosim ortsa (t,v = const); 3) bosim ortsa (n,v = const); berilgan shartlarga ko`ra reaksiya muvozanati qaysi tomonga siljiydi? a) o`ngga; b) chapga; c) siljimaydi. [2,5-ball] a) 1a, 2b yoki a, 3c b) 1c, 2a yoki 2b, 3b c) 1a, 2b yoki 2c, 3b d) 1c, 2b yoki 2c, 3c 11. …](/media/previews/pages/p2_290590.webp "ser-46 - Page 2")
![r h2s so2 a) 1 [1,5-ball] b) 3 c) 1, 2 d) 2, 3 15. ikki valentli metall nitrat eritmasi elektroliz qilindi. katodda 42 g metall va 5,6 l (n.sh) vodorod, anodda esa 11,2 litr(n.sh.) kislorod hosil bo`ldi. metallni toping. [2,5-ball] a) cu b) pb c) fe d) cd 16. odatdagi sharoitda qaysi metall konsentrlangan nitrat kislota ta’sirida passivlashadi? [1,0-ball] a) au b) zn c) al d) ag 17. x g fosfor konsentrlangan nitrat kislotada eritildi. y g mis konsentrlangan sulfat kislotada eritilsa y g gaz ajraldi. reaksiya kirishgan kislotalar miqdori (mol) teng bo`lsa, y g metan molini toping. (y - x = 25,8 ) [2,5-ball] a) 1 b) 2 c) 3 d) 4 18. 5–vinilsiklogeksadien – 1,3 molekulasida uzunligi eng qisqa bo`lgan c – c (oddiy) bog`ni belgilang. a) c(1) – c(6) [2,0-ball] b) c(2) – c(3) c) c(4) – c(5) d) c(5) – c(6) 19. temirning usti qaysi …](/media/previews/pages/p3_290590.webp "ser-46 - Page 3")
![htasi natriy bilan reaksiyaga kirishadi? etanol, metanal, krezol, toluol, trotil, etilenglikol a) 1 [2,0-ball] b) 2 c) 3 d) 5 24. asetilendan ikki bosqichda xlorbenzol olindi. birinchi bosqichda birlamchi uglerodlar soni 4 marta kamaydi. ikkinchi bosqichda ishlatilgan xlorni olish uchun laboratoriyda 17,4 g piroluzit xlorid kislota bilan ta’sirlashgan bo`lsa, dastlabki asetilen hajmini (n.sh. l) toping. [2,5-ball] a) 35,84 b) 17,92 c) 8,96 d) 6,72 25. sovun formulasini toping.. [1,0-ball] a) (c17h35coo)3al b) c17h35cooch2 ch2oh c) c17h35conh2 d) c17h35coona 26. .2 mol glitserin trioleinat gidrogenlanishi uchun 3 mol vodorod sarflangan bo‘lsa, hosil bo‘lgan organik birikma molekulasidagi π - bog‘lar sonini toping. a) 6 [2,0-ball] b) 9 c) 12 d) 15 27. 0,1 mol polipeptid (oqsil) gidrolizidan hosil bo`lgan aminokislotalar to`liq 1,46 kg 20% li hcl eritmasi bilan reaksiyaga kirishdi. polipeptid nechta aminokislota qoldi- g`idan tarkib topgan? (oqsil faqat monoaminokislotadan tashkil topgan) [2,5-ball] a) 70 b) 40 c) 65 d) 80 28. …](/media/previews/pages/p4_290590.webp "ser-46 - Page 4")
![rta ketma-ket hbr bilan ishlandi, so`ngra rux ta’sir ettirildi. oxirgi olingan organik moddani toping. a) siklobutan [1,5-ball] b) metilsiklobutan c) buten -2 d) butadien-1,3 “rar” abituriyentlarni tayyorlash markazi uchun maxsus aprobatsiya _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 5 32. me(so4)w tarkibida kislorod massa ulushi 40% bo`lsa, tuz formulasini aniqlang. [1,5-ball] a) meso4 b) me2so4 c) me2(so4)3 d) me(so4)2 topshiriqlar (33-35) va javob variant (a-f) larini o`zao to`g`ri moslashtiring. 26 g metall suyultirilgan nitrat kislotada to`liq eritildi. hosil bo`lgan eritmaga gaz ajralishi tugagunicha ishqor eritmasidan qo`shildi. ushbu gaz 10,8 g temir (ii) oksid bilan qizdirilsa biri qattiq va biri gaz bo`lgan oddiy moddalar hosil bo`ldi. [2,5-ball] 33. dastlabki metallning molar massasini (g/mol) toping. [2,5-ball] 34. hosil bo`lgan gazsimon oddiy moddaning hajmini (n.sh l) toping. [2,5-ball] 35. reaksiyaga kirishgan nitrat kislota miqdorini (mol) toping. a) 52 b) 1,12 c) 65 d) 2,24 e) 1 f) 4 36. alkan hajmidan 10 marta ko`p hajmdagi kislorod va azot aralashmasi …](/media/previews/pages/p5_290590.webp "ser-46 - Page 5")
About "ser-46"
“rar” abituriyentlarni tayyorlash markazi uchun maxsus aprobatsiya _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 1 “rar med school” milliy sertifikat uchun variant. - 46 - abituriyentlarni tayyorlash markazi qarshi -2025 “rar” abituriyentlarni tayyorlash markazi uchun maxsus aprobatsiya _________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ 2 kimyo-46 1. bir donda io...
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