Sana
7-Nazorat ishi
1.Quyidagi moddani xalqaro nomenklatura bo‘yicha nomlang.
CH3 - CH(NO2) - CH(CH3) - CH3 _________________________________________
2.Quyida keltirilgan moddalarning struktur formulasini yozing
1)1-nitropropan ___________________________________________________________________2)3-metil-2-nitrobutan ___________________________________________________________________
3.Reaksiyani davom ettiring
CH4 + HONO2 =
CH3 - NO2 + 3 H2 =
4..42gr nitroetandan necha gr etil amin olish mumkin?
5.Anilin___________________________________________________________
_______________________________________________xomashyo hisoblanadi.
Sana
8-Nazorat ishi
1.Aminokislotalarning umumiy formulasi
A) NH2-R-COOH B) –ROOH
C) –ROH D)
2.. ____________ tolalaridan kiyim-kechak, sun’iy mo‘yna, parashyut, arqon, baliq to‘rlari tayyorlanadi
A) asetat B) tabiiy C) ipak D) Kapron
3. Тabiiy tolalarni kimyoviy qayta ishlab olinadigan tolalar _________ tolalar deb, sintetik materiallardan olinadigan tolalar esa _________ tolalar deb ataladi.
A) sun’iy, sintetik B) tabiiy C) ipak D) asetat
4. _________ (proteinlar)-ma’lum ketma-ketlikdagi peptid bog‘lari orqali birikkan, kamida yuzta aminokislotadan tashkil topgan biopolimerlardir.
A) Oqsillar B) Murakkab efirlar C) Aminlar D) Aminokislotalar
5. ________-rangsiz suyuqlik bo‘lib, qo‘lansa hidli, 115°C da qaynaydigan, suvda va organik erituvchilarda oson eriydigan modda.
A) Pirrol B) Piridin C) Furan D) Pirimidin
6. ____________ bir xil molekulalarning ketma-ket yanada yirik molekulalar hosil qilib birikish reaksiyasi
A) Polimerlanish B) qaytarilish C) gidrogenlanish D) degidrogenlanish
7. Kapron makromolekulalari chiziqli tuzilishga ega va umumiy _________formula bilan ifodalash
A) –ROH B) –ROOH C) NH2-R-COOH D) [-NH-(CH2)5-CO-]n
8. Quyidagi moddalar polimerlanish reaksiya tenglamalarini yozing:
a) etilen___________________________________________________________
b) propilen_________________________________________________________
9. Molekulyar massasi 13500 g/mol bo’lgan polibutadiyenning polimerlanish
darajasini hisoblang__________________________________________________
___________________________________________________________________
10. Molekulyar massasi 62500 g/mol bo’lgan polivinilxloridning polimerlanish darajasini hisoblang__________________________________________________
___________________________________________________________________
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