What can you say about the final endpoint for the titration of the aqueous layer, as
described by our procedure? (Select all that apply.)
a. The endpoint is recognized by the disappearance of the purple colour.
b. Starch froms a deep blue molecular complex with the l ⁻ion.
c. The endpoint is recognized by the disappearance of the brown colour.
d. The deep blue molecular complex appears at the endpoint.
e. The deep blue molecular complex disappears at the endpoint.
f. Starch forms a deep blue molecular complex with the ₃⁻ion.