What is the key characteristic of homogeneous catalysts?

Homogeneous Catalysts in Pharmaceutical Synthesis

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

Amelia Wright
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They are in a different phase than the reactants.
They operate in a solid state.
They are always gaseous.
They are in the same phase as the reactants.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a catalytic cycle, what is the role of ligands?
They are the main reactants.
They are used to increase the temperature of the reaction.
They help in binding the catalyst to the product.
They play a major role in the catalyst's ability to operate the cycle.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why are homogeneous catalysts widely used in the synthesis of pharmaceuticals?
They are inexpensive and easy to handle.
They allow for high precision and selectivity in reactions.
They do not require any ligands.
They are not sensitive to air or moisture.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a major drawback of using homogeneous catalysts?
They are very stable and easy to recover.
They are not sensitive to air or moisture.
They are always in a gaseous state.
They tend to decompose during their catalytic performance.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Turnover Number (TON) indicate in catalysis?
The temperature at which a catalyst operates.
The amount of catalyst needed for a reaction.
The speed at which a catalyst reacts.
The number of cycles a catalyst can perform before decomposing.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of Turnover Frequency (TOF) in catalysis?
It indicates the temperature at which a catalyst operates.
It measures the stability of a catalyst.
It measures the number of cycles a catalyst can perform per unit time.
It shows the amount of catalyst needed for a reaction.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it challenging to find the ideal catalyst?
Due to the lack of available ligands.
Because catalysts are always stable.
Due to the high cost and difficulty in achieving high TON and TOF.
Because catalysts are always inexpensive.
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