
Purification and Synthesis in Chemistry

Interactive Video
•
Chemistry
•
11th - 12th Grade
•
Hard

Sophia Harris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the chemical name of aspirin?
Acetylsalicylic acid
Salicylic acid
Acetic acid
Sulfuric acid
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which reagent is used to introduce the acetyl group in the synthesis of aspirin?
Iron(III) chloride
Acetic anhydride
Ethanol
Sulfuric acid
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a hot water bath in the reaction setup?
To cool the reaction
To initiate crystallization
To provide even heating
To dissolve the reagents
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of sulfuric acid in the reaction?
It is a reactant
It is a catalyst
It is a product
It acts as a solvent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is vacuum filtration used after crystallization?
To heat the solution
To cool the solution
To dry the crystals
To dissolve impurities
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of recrystallization in the purification process?
To increase the yield
To remove impurities
To change the color
To reduce the mass
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which solvent is used to dissolve impure aspirin during recrystallization?
Acetic anhydride
Ethanol
Sulfuric acid
Water
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