
Solventi e Cristallizzazione
Authored by Vito Barraco
Chemistry
Professional Development

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quali solventi sono considerati sicuri?
Acqua, alcol etilico, acetone, solventi a base di agrumi.
toluene
benzene
cloroformio
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quale solvente ha un punto di ebollizione di 78 °C?
Benzina
Glicerina
Etanolo
Acqua
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quali solventi devono essere evitati in scala ridotta?
Solventi altamente volatili, tossici o pericolosi per l'ambiente.
Solventi facilmente biodegradabili.
Solventi comuni utilizzati in laboratorio.
Solventi a bassa volatilità e non tossici.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è il punto di ebollizione dell'acetone?
56 °C
0 °C
25 °C
100 °C
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cosa indica 'di uso limitato' nella tabella?
Disponibilità solo in determinati periodi.
Accesso riservato a un gruppo specifico.
Uso illimitato dell'oggetto o servizio.
Restrizioni sull'uso dell'oggetto o servizio.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quali sono le principali coppie di solventi elencate?
Acqua e etanolo, acqua e acetone, cloroformio e metanolo
Acqua e benzene
Acetone e metano
Etanolo e glicerina
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Qual è il punto di ebollizione del metanolo?
64,7 °C
100,0 °C
50,0 °C
78,5 °C
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