1. Mitsella nima? A qattiq fazaning zarrachalari

A) sedimentatsiya
B) agregatsiya
C) peptizatsiya
D) solvatatsiya
9. Berlin lazurining formulasini toping.
A) Fе₄[Fе(СN)₆]₃
B) K₄[Fe(CN)₆]
C) K₃[Fe(CN)₆]
D) Fе₂[Fе(СN)₆]₃
10. Agar zarracha musbat zaryadlangan bo’lsa, u filtr qog’ozning kapillyarlari orqali qanday harakatlanadi?
A) juda sekin
B) harakatlanmaydi
C) uning harakatini aniqlash imkonsiz
D) intensiv
11. Filtr qog’oz kapillyarlari bo’ylab qanday zarrachalar harakatlana oladi?
A) 0 zaryadli
B) musbat
C) manfiy
D) harakatlanmaydi
12. Kolloid zarrachaning zaryadi qanday bo’lishi mumkin?
1. musbat; 2. manfiy; 3. 0 (neytral); 4. Aniqlab bo’lmaydi.
A) 1,2
B) 1,3
C) 2
D) 4
13. Koagulyatsialovchi ion …
A) zaryadi bo’lmaydi
B) zarracha bilan bir xil zaryadda bo’ladi
C) zarrachaga teskari zaryadda bo’ladi
D) to’g’ri javob yo’q
14. Termodinamik beqaror sistemalarni tanlang.
1. zol; 2.SFM eritmasi; 3. Ko’pik; 4. Emulsiya; 5. YuMB eritmasi; 6. Suspenziya
A) 1,3,4
B) 5,6
C) 1,3,4,6
D) 2,5
15. Termodinamik barqaror sistemalarni tanlang.
1. zol; 2.SFM eritmasi; 3. Ko’pik; 4. Emulsiya; 5. YuMB eritmasi; 6. Suspenziya
A) 1,3,4
B) 5,6
C) 1,2,3,4
D) 2,5
16. Agregatsiya nima?
A) sharsimon zarrachalarning hosil bo’lishi
B) zarrachalarning kattalashishi
C) zarrachalarning parchalanishi
D) katta zarrachalarni kichikroq qismlarga ajralishi
17. Kinetik barqarorlik deganda nima tushuniladi?
A) dispers zarrachalarning cho’kmasdan, dispers muhitda tarqalgan holda qolishi
B) dispers zarrachalarning yuqori tezlikda cho’kishi
C) dispers zarrachalarning qo’shilib kattalashishga qarshilik ko’rsatmasligi
D) dispers zarrachalarning qo’shilib kattalashishga qarshilik ko’rsatishi va sistemaning disperslik darajasini saqlab turishi
18. Agregativ barqarorlik deganda nima tushuniladi?
A) dispers zarrachalarning cho’kmasdan, dispers muhitda tarqalgan holda qolishi
B) dispers zarrachalarning yuqori tezlikda cho’kishi
C) dispers zarrachalarning qo’shilib kattalashishga qarshilik ko’rsatmasligi