Separating Components of a Mixture by Extraction
Interactive Video
•
Chemistry, Science
•
11th Grade - University
•
Practice Problem
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What physical property is used to separate sodium chloride and cholesterol in the example provided?
Solubility
Magnetism
Boiling point
Density
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the complex example, which compound reacts with hydrochloric acid due to its basic nature?
Benzoic acid
Sodium chloride
1,4-dibromobenzene
4-chloroaniline
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the role of sodium bicarbonate in the separation process?
To protonate aniline
To evaporate ether
To react with benzoic acid
To dissolve 1,4-dibromobenzene
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is dibromobenzene recovered from the ether solution?
By adding a strong acid
By adding sodium hydroxide
By evaporating the ether
By using a vacuum pump
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a Buchner funnel in the recovery process?
To mix the solutions
To measure the pH
To evaporate solvents
To filter and dry the precipitate
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which compound requires a strong base for deprotonation during recovery?
Cholesterol
Benzoic acid
4-chloroaniline
1,4-dibromobenzene
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the final pH range indicating the completion of the deprotonation of the aniline salt?
Around 2
Around 7
Around 5
Around 11 or 12
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