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Keling!!! Kimyoni birgalikda Γ³rganamizπ₯ ΠΠ°Π²Π°ΠΉΡΠ΅!!! ΠΠ·ΡΡΠ°Π΅ΠΌ Π²ΠΌΠ΅ΡΡΠ΅ Π₯ΠΈΠΌΠΈΡπ₯ ustoz: Bunyod Raxmanov Bog'lanish π @ChemOfficer_bot Bog'lanish π @ProChem
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Channel Posts
ππ π€π π π π
1οΈβ£βΊοΈ2οΈβ£7οΈβ£0οΈβ£9οΈβ£2οΈβ£6οΈβ£
β οΈ net tezligi pastligi tufayli ayrim kamchiliklari bo'lsa to'g'ri qabul qilasizlar
βοΈMILLIY SERTIFIKATβοΈ
πQABULGA YOZILISHπ
π¨π»βπ»@online_dars_qabul
π©π»βπ»@qabul_online_dars
_________________________________
ustozβοΈ Bunyod Raxmanov
kanalπ @ChemOfficer
kanalπ @olympic_uz_ru_en
| 2 | Assalomu aleykum hurmatli kanal a'zolari!
Mahallamizda elektr ta'minoti remonti sabab 1 sutkadan beri oΚ»chirilgan, shu sabab online dars yozib olingan videosi hajmini kochraytirib kanalga joylashda kechikish boΚ»lyapti, nasib kechka tok kelsa joylanadi. | 335 |
| 3 | π’βπ
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2οΈβ£1οΈβ£ 23,2 g noma'lum aldegid 0,9 mol Cu(OH)β ning yangi tayyorlangan eritmasidan o'tkazilganda hosil bo'lgan qattiq modda qizdirilganda 65,6 g qattiq qoldiq qolgan bo'lsa, aldegid tarkibidagi Ο-bog'lar sonini aniqlang. | 490 |
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2οΈβ£0οΈβ£ HβS va mo'l miqdordagi kisloroddan iborat 100 ml aralashma yondirildi. Hosil bo'lgan suv bug'i kondensatsiyalangach, 62,5 ml gazlar aralashmasi qoldi. Gaz hajmlari bir xil sharoitda o'lchangan. Dastlabki aralashmadagi kislorod hajmini (ml) aniqlang. | 462 |
| 5 | π’βπ
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1οΈβ£9οΈβ£ Etan va atsetilendan iborat 2 l aralashmaga 4 l H2 qoβshib toβliq gidrogenlandi. Natijada 4,4 l aralashma olindi (hajmlar bir xil sharoitda oβlchangan). Dastlabki aralashmadagi etanning mol ulushini toping. | 457 |
| 6 | π’βπ
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1οΈβ£8οΈβ£ Molekulasida 15 ta sigma bog' va 2 ta uchlamchi uglerod saqlagan sikloalkan H2 ta'sirida parchalanganda 1:2 mol nisbatda tarmoqlangan va tarmoqlanmagan o'zaro izomer bo'lgan alkanlar hosil bo'ldi. Tarmoqlangan alkanni sistematik nomenklanatura bo'yicha nomlang. | 430 |
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1οΈβ£7οΈβ£ M pogonada joylashgan elementda 8 ta s orbital bor (Ti ning elektron konfiguratsiyasini chizib bergan). Shundagi M va N qavatlardagi bo'sh orbitallar sonini hisoblang. | 433 |
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1οΈβ£6οΈβ£ Kaliyning galogenli tuzining eritmasi 13,8 A tok bilan 6 soat davomida elektroliz qilindi umumiy anodda hosil bolgan moddalar katodda hosib bo'lgan moddalardan 140 gr ga ko'p nomalum galogenni aniqlang. | 388 |
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1οΈβ£5οΈβ£ A modda HCl da eritildi. Natijada B modda hosil bo'ldi. B+Cβ>D(cho'kma)+H2O. [A modda 3-davrda joylashgan]
β οΈ C modda bo'yicha ma'lumot yetarli emas, kirib chiqqanlar to'ldiring.
A) Fe2S3
B) Na2S
C) Na2O
D) MgSO3 | 380 |
| 10 | π’βπ
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1οΈβ£4οΈβ£ Daltonit qanday kristal panjaraga ega? | 378 |
| 11 | π’βπ
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1οΈβ£3οΈβ£ R1COOR2 va R2OR3 dagi jami sigma bog'lar 29 ta. Murakkab efirni hosil qilgan spirtda 6 ta atom bor. R2OR3 da 13 ta sigma bog' bor. R3 ni toping. | 352 |
| 12 | π’βπ
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1οΈβ£2οΈβ£ NH4ClO4+Pβ>Cl2+N2+H3PO4+H2O
Jami koefitsiyentlar yigΚ»indisi soΚ»ralgan | 388 |
| 13 | π’βπ
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1οΈβ£1οΈβ£ RO4 qaysi element oksidi
A) Ruteniy
B) Neon
C) Argon
D) Marganes | 386 |
| 14 | π’βπ
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π K L M N qavatlarida M v N qavatda jami nechta boΚ»sh yacheyka bor?
M pogonadagi elektronlar 2s2 2p6 3d2 holati yacheykalarda chizib berilgan. Javob: 3, 18, 12, 11 | 387 |
| 15 | π’βπ
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9οΈβ£ P Sc Ar H He S O elementlari bo'lgan qaysi ikkita moddani qoΚ»zgalmagan holatida tashqi elektronlar soni farqi 3 ga teng | 385 |
| 16 | π’βπ
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8οΈβ£ As2S3+HNO3=H3AsO4+H2SO4+NO2+H2O ushbu reaksiyani yarim reaksiyada tenglang va oksidlanish jarayonini kimyoviy tenglamasini yozing | 379 |
| 17 | π’βπ
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7οΈβ£ H2S va mo'l miqdordagi kisloroddan iborat 100ml aralashma yondirildi natijada 62.5ml gazlar aralashmasi hosil bo'ldi reaksiya uchun olingan kislorod miqdori qancha? | 339 |
| 18 | π’βπ
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6οΈβ£ Atmosfera havosidan elektr uchquni o'tkazildi natijada X gramm A modda qo'ng'ir rangli B moddaga aylandi.hosil bo'lgan B modda natriy ishqori eritmasidan o'tkazildi.hosil bo'lgan eritmadan suv bug'latildi va qolgan tuz qizdirildi natijada 27,6 gramm tuz qoldi. X ni toping | 449 |
| 19 | π’βπ
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5οΈβ£ 3,2 gr metal oksidi vodorod bilan metallgacha qizdirilganda 2,24 gr metal hosil boldi. Metall oksidi formulasini toping. | 339 |
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4οΈβ£ 5 mol CuSO4 saqlagan eritma misdan yasalgan katod va anod (80g dan) 5,36 A tok kuchi bilan elektroliz qilinganda katod massasi anod massasidan 4 marta ortib ketsa, elektroliz qancha soat davom etgan?
A)7,5
B)10
C)12,5
D)15 | 350 |
