To Test for the Presence of Starch,iodine Can Be Used

question 41

Multiple Choice

To test for the presence of starch,iodine can be used.A positive reaction results in a black color.A dialysis bag filled with starch solution and secured on both ends is placed in iodine solution.After 30 minutes the dialysis bag appears black.Based on this information,what most accurately describes what happened?

• A)Due to its size and polarity,starch was able to exit the dialysis bag and interact with the iodine solution.
• B)Due to its size and polarity,iodine was able to enter the dialysis bag and interact with starch.
• C)Over time,both iodine and starch are equally distributed throughout the two solutions.

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Definitions:

Honesty

The quality of being truthful, transparent, and free from deceit in one’s actions and statements.

Obligation

A duty or commitment that compels someone to act in a certain way, often based on moral or legal reasons.

Stronger Apology

A more impactful and sincere expression of regret for a mistake or wrongdoing.

Responsibility

The state or fact of being accountable or to blame for something, entailing the obligation to carry out duties or tasks.