UNIVERSAL KIMYO
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Keling!!! Kimyoni birgalikda Γ³rganamizπŸ”₯
Π”Π°Π²Π°ΠΉΡ‚Π΅!!! Π˜Π·ΡƒΡ‡Π°Π΅ΠΌ вмСстС Π₯имиюπŸ”₯
ustoz: Bunyod Raxmanov
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2️⃣6️⃣0️⃣5️⃣2️⃣4️⃣
⚜️MILLIY AERTIFIKAT⚜️
o'sha paytda kirib chiqqanlarning xotirasida boricha kanalga yetib kelgan test-topshiriqlar tahlilini takrorlab olamiz
πŸ’¬
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Kalsiy gipofosfit molekulasidagi kimyoviy bog'lar sonini toping?
Π‘Π°(Н2РО2)2 β€” (2*2*2)O+(2*2)H=12
βœ… 12

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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❀1
P4S7 + NO3- + H2O = PO4(3-) + SO4(2-) + H+...

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1,1β€’10^-8 M li HCl eritmasi pH qiymati topilsin.
A) 7
B) 6,98
C) 8
D) 7,02

B)βœ… pH=-lg(0,00000011)=6,98

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Qum hamomi nima maqsadda foydalaniladi?
βœ…sistema (idish) ni butun hajm bΓ²ylab bir tekis qizdirishda

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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Sr, Cr, Ni, Fe3+, Co3+, Fe2+ ...lardagi s va d elektronlar soni teng bo'lganlarini toping?
βœ…Fe2+, Co3+, Ni, Sr

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ustozπŸ‘¨πŸ»β€πŸ« Bunyod Raxmanov
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πŸ”— @ChemOfficer
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Quyidagi fikrlardan qaysi to'g'ri...
βœ…A) -COOH dagi C ga sistemak bo'yicha 1-raqam beriladi

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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πŸ”— @ChemOfficer
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Biuret reaksiyasi oqsildagi H-bog'larni aniqlaydimi?
βœ… peptid (-CO-NH-) bog'ini aniqlaydi

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dikarbon kislotani eng kichik gomologi nomi?
βœ…oksalat (shovul) kislota

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πŸ”— @ChemOfficer
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Moddalarning bosim va temp.ga bog'liq holda agregat holatlarning bir-biriga to'g'ri o'tgan grafikni aniqlang.
βœ…Javobni kitobimdan topasiz

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πŸ”— @ChemOfficer
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300gr 4,5% KNO3 eritmasi 13,4 A tok kuchi bilan elektroliz qilindi. Natijada KNO3ning 30Β°dagi toΚ»yingan eritmasi olindi. Eritma necha soat davomida elektroliz qilingan. S=45
πŸ”£5️⃣7️⃣ izoh: oxirgi hisobda texnik yanglishib 171 chiqarilgan

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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7, 13, 15 elementlarni elektromanfiyligi ortish tartibida joylashtiring?
βœ…13,15,7

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Tutqich qanday vazifani bajaradi
βœ…Kolbaning oĝzini mahkam ushlash

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Asbest to'rni vazifasi nima?

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Tarozini ikki pallasiga CaCO3 ochiq idishda 5 g dan qoΚ»yilgan chap pallasi qizdiriladi va taroziga qoΚ»yildi . Qaysi fikr toΚ»gΚ»ri?
A) o'ng 2.2 gr ga oĝirβœ…
B) òng 2.8 ga ga oĝir
C) chap 2.2 gr ga oĝir
D) chap 2.8 great ga oĝir

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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Tabiiy polimer?
A) Sellulozaβœ…
B) Saxaroza
C) Diyen-kauchuk
D) Polietilen

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Suyultirilgan sulfat kislota qaysi modda bilan reaksiyaga kirishadi
1) K2SO3βœ…
2) CO2
3) Al(OH)3βœ…
4) H2

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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2:1 mol nisbatda olingan ikki xil alkanning vodorodlar soni uglerodlar soniga nisbati 20/7
Birinchi uglevodorodning vodorodlar soni ikkinchi uglevodorod vodorodlar soniga nisbati 3/2
Shu aralashmani yoqish uchun qancha hajm kislorod sarflanad?

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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2mol butanon oksidlanganda 88,8g C3H6O2 hosil boΚ»lgan boΚ»lsa hosil boΚ»lgan metan va etan kislota massasini toping?

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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2:1 nitroalkan bilan nitrobenzol qaytarilganda hosil bo’lgan aralashmada vodorod atomlarining umumiy atomlarga nisbati 33:52 nisbatda bo'lsa, nitroalkanni aniqlang?

2CnH2n+3N va C6H7N

4n+13 33
----------- = -----
6n+22 52

n=5 C5H11NH2βœ…

5️⃣0οΈβƒ£πŸ”£β€οΈβ€οΈβ€οΈπŸ—“ IYUNDAN 3️⃣ OYLIK YOZGI TA'TIL KURSIGA START🏁 BERILADI
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