F324 Past Papers Flashcards
What happens wen something reacts with tollens?
It is oxidised.
When bromine reacts with phenol what would you observe to happen?
A white precipitate forms, And bromine decolourise.
What are problems with kukele?
Enthalpy change of hydrogenation is less exothermic than expected.
What is retention time?
The time from the injection of a sample for the component to leave the column.
What are problems with chiral drugs?
Production or separation of a single isomer can be difficult.
Another isomer may be harmful.
How can problems with chiral drugs be overcome?
Enzymes.
Chiral synthesis.
How can you derive the structure of a compound through the Bradys test?
Take the melting point of product and compare with known values.
When do you leave the ends?
When asked for repeats.
How does a liquid stationary phase separate compounds in a mixture?
Relative solubility
What are problems with kukele?
Enthalpy change of hydrogenation is less exothermic than expected.
What is retention time?
The time from the injection of a sample for the component to leave the column.
What are problems with chiral drugs?
Production or separation of a single isomer can be difficult.
Another isomer may be harmful.
How can problems with chiral drugs be overcome?
Enzymes.
Chiral synthesis.
How can you derive the structure of a compound through the Bradys test?
Take the melting point of product and compare with known values.
When do you leave the ends?
When asked for repeats.
