EXPERIMENT 15 ANILINE

Question 1

is a colorless liquid when freshly prepared but changes overtime to dark brown or red?

Answer 1

Aniline

Question 2

if aniline is oxidized what color does it make?

Answer 2

red or brown

Question 3

what odor does the aniline make?

Answer 3

peculiar odoro

Question 4

aniline is insoluble in _________ but soluble in _________?

Answer 4

water, organic solvents

Question 5

In the test for basicity what chemicals were used? Give its chemical formula?

Answer 5

Aniline (C6H5NH2), Water (H2O), Ferric chloride (FeCl3)

Question 6

what was the product of basicity?

Answer 6

C6H5NH2+H2O —-> C6H5NH3 . OH (Anilinium hydroxide)

C6H5NH3.OH + Fe(Cl)3 —-> C6H5NH3.Cl + Fe(OH)3

Question 7

what was the observable result of the test for basicity?

Answer 7

the presence of a brown precipitate formed indicating it to be oxidized. The Anilinium hydroxide turned the red litmus paper into a blue litmus paper. Inidicating it to be basic

Question 8

how many ml of aniline was used in salt formation?

Answer 8

1/2 ml of aniline

Question 9

the salt formation experiment created a product of?

Answer 9

C6H5NH2+HCl —–> C6H5NH3Cl Anilinium chloride

Question 10

what was the observable results of the salt formation?

Answer 10

Presence of smoke was present

Question 11

C6H5NH2+H2O —-> C6H5NH3.OH
C6H5NH3.OH + FeCl —-> Fe(OH)3 + C6H5NH3.Cl
What test was this?

Answer 11

Basicity

Question 12

Presence of a brown precipitate? what test was this?

Answer 12

basicity

Question 13

No changes were made however presence of smoke was present? What test was this?

Answer 13

Salt formation

Question 14

by product of salt formation test?

Answer 14

C6H5NH3.Cl Anilinium chloride

Question 15

what made the litmus paper in basicity test turn it to blue?

Answer 15

Anilinium hydroxide