
12.kl. polimērmateriālu īpašības
Authored by Jūlija Belkovska
Chemistry
12th Grade
Used 17+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kurš no nosauktajiem savienojumiem ir dabiskais lielmolekulārais savienojums?
celuloze
acetātceluloze
nitroceluloze
teflons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lai uzlabotu kaučuka īpašības un iegūtu gumiju, kaučukam pievieno sēru. Kā sauc šo procesu?
destilācija
kondensācija
vulkanizācija
hidrotācija
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Sintētiskais LMS ir
celuloze.
polipropilēns.
ciete.
olbaltumvielas.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lielmolekulārie savienojumi, kuri paaugstinātā temperatūrā kūst, bet atdzesējot atgriežas iepriekšējā stāvoklī, ir
termoreaktīvie polimēri.
termoplastiskie polimēri.
elastomēri.
dabiskās šķiedras.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Monomērs-
polimēra struktūra atkārtojas n reizes.
ir viela, kas polimerizējas.
veidojas polimerizācijas procesā.
norāda elementārposmu skaitu polimērā.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Polietilēna monomērs ir
–CH2– CH2–
CH2 = CH2
–CH2–
C2H5OH
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Elementārposmu –CH2– CH2– satur
butadiēnastirola kaučuks.
polipropilēns.
butadiēna kaučuks.
polietilēns.
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