IYUN
1๏ธโฃ IYUN๐๐๐จ
1๏ธโฃ SENTYABR ๐
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2๏ธโฃ6๏ธโฃ0๏ธโฃ5๏ธโฃ2๏ธโฃ4๏ธโฃ
โ๏ธMILLIY AERTIFIKATโ๏ธ
o'sha paytda kirib chiqqanlarning xotirasida boricha kanalga yetib kelgan test-topshiriqlar tahlilini takrorlab olamiz๐ฌ
โ๏ธMILLIY AERTIFIKATโ๏ธ
o'sha paytda kirib chiqqanlarning xotirasida boricha kanalga yetib kelgan test-topshiriqlar tahlilini takrorlab olamiz
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Kalsiy gipofosfit molekulasidagi kimyoviy bog'lar sonini toping?
ะกะฐ(ะ2ะ ะ2)2 โ (2*2*2)O+(2*2)H=12
โ 12
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ะกะฐ(ะ2ะ ะ2)2 โ (2*2*2)O+(2*2)H=12
โ 12
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โค1
P4S7 + NO3- + H2O = PO4(3-) + SO4(2-) + H+...
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1,1โข10^-8 M li HCl eritmasi pH qiymati topilsin.
A) 7
B) 6,98
C) 8
D) 7,02
B)โ pH=-lg(0,00000011)=6,98
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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A) 7
B) 6,98
C) 8
D) 7,02
B)โ pH=-lg(0,00000011)=6,98
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Qum hamomi nima maqsadda foydalaniladi?
โ sistema (idish) ni butun hajm bรฒylab bir tekis qizdirishda
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โ sistema (idish) ni butun hajm bรฒylab bir tekis qizdirishda
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Sr, Cr, Ni, Fe3+, Co3+, Fe2+ ...lardagi s va d elektronlar soni teng bo'lganlarini toping?
โ Fe2+, Co3+, Ni, Sr
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โ Fe2+, Co3+, Ni, Sr
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Quyidagi fikrlardan qaysi to'g'ri...
โ A) -COOH dagi C ga sistemak bo'yicha 1-raqam beriladi
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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โ A) -COOH dagi C ga sistemak bo'yicha 1-raqam beriladi
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Biuret reaksiyasi oqsildagi H-bog'larni aniqlaydimi?
โ peptid (-CO-NH-) bog'ini aniqlaydi
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โ peptid (-CO-NH-) bog'ini aniqlaydi
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dikarbon kislotani eng kichik gomologi nomi?
โ oksalat (shovul) kislota
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โ oksalat (shovul) kislota
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Moddalarning bosim va temp.ga bog'liq holda agregat holatlarning bir-biriga to'g'ri o'tgan grafikni aniqlang.
โ Javobni kitobimdan topasiz
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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โ Javobni kitobimdan topasiz
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300gr 4,5% KNO3 eritmasi 13,4 A tok kuchi bilan elektroliz qilindi. Natijada KNO3ning 30ยฐdagi toสปyingan eritmasi olindi. Eritma necha soat davomida elektroliz qilingan. S=45
๐ฃ 5๏ธโฃ 7๏ธโฃ izoh: oxirgi hisobda texnik yanglishib 171 chiqarilgan
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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7, 13, 15 elementlarni elektromanfiyligi ortish tartibida joylashtiring?
โ 13,15,7
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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โ 13,15,7
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Tutqich qanday vazifani bajaradi
โ Kolbaning oฤzini mahkam ushlash
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โ Kolbaning oฤzini mahkam ushlash
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Asbest to'rni vazifasi nima?
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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Tarozini ikki pallasiga CaCO3 ochiq idishda 5 g dan qoสปyilgan chap pallasi qizdiriladi va taroziga qoสปyildi . Qaysi fikr toสปgสปri?
A) o'ng 2.2 gr ga oฤirโ
B) รฒng 2.8 ga ga oฤir
C) chap 2.2 gr ga oฤir
D) chap 2.8 great ga oฤir
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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A) o'ng 2.2 gr ga oฤirโ
B) รฒng 2.8 ga ga oฤir
C) chap 2.2 gr ga oฤir
D) chap 2.8 great ga oฤir
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Tabiiy polimer?
A) Sellulozaโ
B) Saxaroza
C) Diyen-kauchuk
D) Polietilen
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A) Sellulozaโ
B) Saxaroza
C) Diyen-kauchuk
D) Polietilen
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Suyultirilgan sulfat kislota qaysi modda bilan reaksiyaga kirishadi
1) K2SO3โ
2) CO2
3) Al(OH)3โ
4) H2
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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1) K2SO3โ
2) CO2
3) Al(OH)3โ
4) H2
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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?
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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Birinchi uglevodorodning vodorodlar soni ikkinchi uglevodorod vodorodlar soniga nisbati 3/2
Shu aralashmani yoqish uchun qancha hajm kislorod sarflanad?
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2mol butanon oksidlanganda 88,8g C3H6O2 hosil boสปlgan boสปlsa hosil boสปlgan metan va etan kislota massasini toping?
5๏ธโฃ 0๏ธโฃ ๐ฃ โค๏ธ โค๏ธ โค๏ธ ๐ IYUNDAN 3๏ธโฃ OYLIK YOZGI TA'TIL KURSIGA START๐ BERILADI
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