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🏫 Online KIMYO Maktabi

πŸ‘¨β€πŸ« Husniddin Ergashev
πŸ‘¨β€πŸ« Mirjalol Boymurodov
πŸ‘¨β€πŸ« Sardor Zokirov

Tayyorlov:
Milliy sertifikat A+ gacha
Attestatsiya Oliy toifagacha
Xalqaro A level imtixoniga
Kirish imtixonlariga

πŸ“ž 97 660 1997
πŸ“© @CEO97

@icc_kimyo_natijalar
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25-yanvar 1-smena

12. Modda tarkibidagi metall va metallmasning massasi 2 ga farq qiladigan tuzni aniqlang
J: LiMnO4

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25-yanvar 1-smena

13. A+B=C+D muvozanatdagi moddalarning konsentratsiyasi sistemada mos ravishda 4. 4. 2. 8. Sistemaga C moddadan 2 mol qoΚ»shildi. Yangi muvozanatdagi sistemada A va B moddalarning konsentratsiyalari yig’indisini aniqlang. ( V=1 litr)
Javob: 9,6


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25-yanvar 1-smena

14. Reaksiya jarayonida kislorodning reaksiya tezligi 0.8 mol/lβˆ™min ga teng. Reaksiya avvalida kislorod miqdori 128 g edi, reaksiyadan so'ng 16 gr bo'lib qoldi. Reaksiya 2.5 litrli idishda olib
borilgan bo’lsa,Reaksiyaga kirishgan kislorod uchun sarflangan vaqt necha sekundga teng?
Javob: 104 sekund

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25-yanvar 1-smena

15. CuSO4 eritmasi inert elektrodlar yordamida elektroliz qilinganda tuzning konsentratsiyasi 12.8 % gacha kamaydi , kislotaning konsentratsiyasi 4.9 % ga yetdi. Dastlabki tuzning konsentratsiyasini(%) toping
Javob: 20%


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25-yanvar 1-smena

16. KOH ning 168 gr 10%li eritmasi dissotsiyalanishidan hosil bo'lgan kation molini toping. (Ξ±=90%)
J: 0,27


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25-yanvar 1-smena

17. CsNO2 eritmasini gidroliz jarayonini sekinlashtirish uchun qaysi tuzdan qo'shish kerak?
J: CsNO2

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25-yanvar 1-smena

18. 33,3 g oligosaxarid – [C6H10O5]n βˆ™ H2O gidrolizidan 36 g glukoza olindi. β€˜β€™n’’ ni aniqlang.
J: 4

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25-yanvar 1-smena

19. Kalsiy pirofosfat, kalsiy digidroortofosfat, magniy gidroksokarbonat tuzlari tarkibidagi sigma bog’lar soni Ο€ bog’lar sonidan necha marta ko’p?
J: 7

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25-yanvar 1-smena

20. 100 g 18% eritmadan 0,9% li eritma hosil qilish uchun, necha gramm suv bilan suyultirish kerak?
J:1900

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25-yanvar 1-smena

21. Linolen kislotasi uchun umumiy
formulasini to’g’ri ko’rsating.
J: CnH2n-6O2

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25-yanvar 1-smena

22. Quyidagi jadvaldan foydalanib musbat zarrachani aniqlang.
Bu yerda jadvali bor

Javob: X

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25-yanvar 1-smena

23. C va H atomlari 1:18 nisbatda bo’lgan CH4 va H2O aralashmasi reaksiyasidan hosil boΚ»lgan oddiy moddaning mol ulushini hisoblang.
J: 0,4

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25-yanvar 1-smena

24. Ammoniy dixromat parchalanganda 0.1 mol gaz ajraldi, hosil boΚ»lgan qattiq qoldiq 0,2 mol NaOH bilan Reaksiyaga kirgizildi hosil boΚ»lgan tuz massasini aniqlang
J: 21,4

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25-yanvar 1-smena

25.Propan xlorganlanda oksidlovchini toping
A) xlor B) kislorod
C) Vodorod D) uglerod

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25-yanvar 1-smena

26. Benzol gomologi yonganda 1,8 mol O2 sarflandi, 0,8 mol suv hosil bo’ldi. Gomologni aniqlang.
A) C6H6 B) C7H8 C) C8H10 D)C9H12


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25-yanvar 1-smena

27. 10 gr RNK (Mr=81000) gidroliz qilinganda 10.4 gr nukliotid hosil boβ€˜ldi.RNK dagi Nukliotidlar sonini toping.
J: 181

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25-yanvar 1-smena

28. 584g diaminokislotasi ikkita qismga ajratildi. Birinchi qismiga xlorid qo'shilganda 438 g tuz modda hosil bo'ldi. Ikkinchi qismiga KOH qo'shilganda hosil bo'ladigan moddaning massasi toping
J: 368 g

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25-yanvar 1-smena

29. 102.6g III valentli A metal sulfati bilan 302.4g II valentli B metal perxlorati aralashtirildi. SoΚ»ngra 209.7 g B metal birikmasi hosil boΚ»ldi. ( Qoldiqsiz reaksiya kirishgan) B metalni toping

J: Bariy


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25-yanvar 1-smena

30. Qaysi asos asosli tuz hosil qilmaydi?
A) KOH
B) Ca(OH)2
C) Al(OH)3
D) barcha asos asosli tuz hosil qiladi

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25-yanvar 1-smena

31. 0.3 mol X va 0.2mol Y ni massasini yigΚ»indisini toping. (Barcha moddalar tarkibida C atomlari soni bir xil)
Videoda sxemasi berilgan
J: 17,6 g

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