Test 1
Authored by Claudia Pop
Chemistry
11th Grade
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5 questions
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1.
OPEN ENDED QUESTION
2 mins • 3 pts
Acizii carboxilici sunt:
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2.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
pH-ul unei probe de vin în contact cu aerul:
crește
scade
nu se modifică
3.
MULTIPLE CHOICE QUESTION
3 mins • 3 pts
Denumirea corectă a acidului carboxilic din imagine este:
acid 2-etilbutanoic
acid 3-etilbutanoic
acid 3-metilpentanoic
acid 3-metilbutanoic
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Care acid carboxilic are tărie chimică mai mare?
H-COOH
CH3-COOH
C6H5-COOH
CH3-CH2-COOH
5.
OPEN ENDED QUESTION
15 mins • 8 pts
Se esterifică 12 g acid acetic cu 9,2 g etanol. Știind că procesul de esterificare are constanta de echilibru 4, cantitatea de ester la echilibru este:
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