Ethers Flashcards
(20 cards)
What ether was used in the ether experiment?
Diethyl ether
The ether that was used in the ether experiment is a symmetrical ether.
True
Is Ether highly flammable?
True
Ether is slightly soluble in water because it is non polar
True
The -OH in ether makes it polar
False
What was added to the ether and water mixture that decreases its solubility in water?
NaCl
In which solvent is ether insoluble?
Conc NaOH
Which causes the cleavage of ether linkage?
Conc. HCl
Which test is used to detect the presence of peroxides in ether?
Potassium Iodide Test
What is the positive result in the test for the presence of peroxides in ether?
Yellow then dark blue color
What was liberated upon adding acidified potassium iodide to ether?
Iodine
What color was obtained after adding acidified potassium iodide to ether?
Yellow
What color was obtained after adding starch paste to the mixture of acidified potassium iodide and ether?
Dark Blue
What makes ether explosive
Presence of peroxide
What is the best solvent for ether?
Ethyl alcohol
Which among the following is not used in a solubility test in ether?
Peroxide
What should be added if homogenous solution is not obtained when ether and water is shaken vigorously?
More water
Which solvent was not used in the solubility test for ether?
Phenol
What is the correct step in the test for peroxide compounds in ether?
I. Acidy with dilute sulfuric acid
II. Add 1-2 drops of starch paste
III. Add 2 ml of potassium iodide
III, I, II
Which equipment is not used in the experiment for ethers?
Water bath
