tests Flashcards
What is the alkene functional group test?
Bromine water
What is the positive result for the test for an alkene functional group?
Orange —> colourless
What is the test for a haloalkane functional group?
Silver nitrate
What is the positive result for the test for a haloalkane functional group?
White (Cl)/cream (Br)/yellow (I) precipitate
What is the test for the carboxylic acid functional group?
Universal indicator
What is the positive result for the test for the carboxylic acid functional group?
Turns red/orange
What is the test for the alcohol functional group?
PCl5
What is the positive result for the test for the alcohol functional group?
Steamy white fumes (HCl)
What is the test for the carbonyl functional group?
2, 4 dinitrophenylhydrazine (DNPH)
What is a carbonyl functional group?
Aldehyde or ketone
What is the positive result for the test for the carbonyl functional group?
Yellow precipitate
What is the test for an aldehyde functional group?
Cr2O7 2- and H+
When can the aldehyde test be performed?
After the carbonyl test
What is the positive result from the test for an aldehyde functional group?
Orange —> green
