
verificare 18C
Authored by MANUELA STAN
Chemistry
9th - 12th Grade
Used 2+ times

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19 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Materia prima in fermentatia alcoolica este....
alcoolul etilic
alcoolul metilic
glucoza
fructoza
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cel mai simplu acid carboxilic contine.......atomi de oxigen
1
2
3
nici unul
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Toate bauturile alcoolice contin alcoolul...
metilic
propilic
etilic
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Precizaţi care dintre afirmaţiile de mai jos sunt corecte.
Alcoolii au formula generală R-OH.
În alcooli, gruparea hidroxil poate fi legată de o catenă laterală a unei hidrocarburi aromatice.
Alcoolii sunt compuşi organici în care gruparea funcţională COOH poate fi legată de o catenă laterală a unei hidrocarburi aromatice..
Sub denumirea de compuşi hidroxilici sunt reunite toate substanţele organice care conţin în moleculă una sau mai multe grupe OH legate de un rest organic.
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Care dintre denumirile alcoolilor de mai jos sunt corecte?
CH3-OH, metanol
CH2=CH-CH2-OH, 1-propanol
CH3-CH2-CH2-CH2-OH, 2-butanol
HO-CH2-CH2-OH 1,3-propandiol
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Glicerina este un alcool:
Aromatic.
Trihidroxilic
Dihidroxilic.
Saturat
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Care alcool este mai toxic: metanolul sau etanolul?
Alcoolul etilic
Alcoolul metilic
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