Question

multiple choice 1 point
why should no layers be discarded until the experiment is complete?
to avoid accidental disposal of the desired compound
to prevent loss of neutral impurities
to maximize crystallization yields
because layers reform spontaneously if discarded

Explanation:

In an experiment, the desired compound may be present in any layer. Discarding layers prematurely risks losing the target - compound. Other options are not the main reasons for keeping layers until experiment completion.

Answer:

To avoid accidental disposal of the desired compound