Podcast
Questions and Answers
What color does copper (II) ion turn into after being reduced in the Benedict’s test?
What color does copper (II) ion turn into after being reduced in the Benedict’s test?
- Blue
- Red (correct)
- Yellow
- Green
What is the purpose of using Benedict’s test in clinical laboratories?
What is the purpose of using Benedict’s test in clinical laboratories?
- To identify the color change of copper ions.
- To measure the pH of urine.
- To diagnose protein deficiencies.
- To test for the presence of reducing agents in urine. (correct)
What happens to the aldehyde group in a compound when Benedict’s reagent is added during the Benedict’s test?
What happens to the aldehyde group in a compound when Benedict’s reagent is added during the Benedict’s test?
- It is oxidized to the carboxylic ion. (correct)
- It forms a blue color complex with citrate ions.
- It remains unchanged.
- It is reduced to copper (I) oxide.
What type of condensation reaction involves the addition of one aldehyde to another with bases as a catalyst?
What type of condensation reaction involves the addition of one aldehyde to another with bases as a catalyst?
What characteristic distinguishes an aldehyde condensation product?
What characteristic distinguishes an aldehyde condensation product?
In living systems, how are carbohydrates primarily prepared?
In living systems, how are carbohydrates primarily prepared?
What class of compounds contain the carbonyl group?
What class of compounds contain the carbonyl group?
Which compound is an example of an aldehyde?
Which compound is an example of an aldehyde?
What is the product when primary alcohols are oxidized?
What is the product when primary alcohols are oxidized?
Which type of reaction results in the formation of aldehyde hydrates?
Which type of reaction results in the formation of aldehyde hydrates?
What is the product formed when a hemiacetal reacts with excess alcohol?
What is the product formed when a hemiacetal reacts with excess alcohol?
What is formed when aldehydes react with alcohols in the presence of an acid catalyst?
What is formed when aldehydes react with alcohols in the presence of an acid catalyst?
Which functional groups are present in a hemiketal?
Which functional groups are present in a hemiketal?
What is formed when a ketone reacts with an alcohol?
What is formed when a ketone reacts with an alcohol?
What products are formed from the reduction of aldehydes and ketones, respectively?
What products are formed from the reduction of aldehydes and ketones, respectively?
Why are aldehydes easily oxidized compared to ketones?
Why are aldehydes easily oxidized compared to ketones?
What is an important chemical difference between aldehydes and ketones that is used in chemical tests for their distinction?
What is an important chemical difference between aldehydes and ketones that is used in chemical tests for their distinction?
