1
Question
Which of the following gives positive haloform test and positive Fehling's solution test?
Which of the following gives positive haloform test and positive Fehling's solution test?
Open in App
Solution
The correct option is B Acetaldehyde
Acetaldehyde gives positive haloform test and positive Fehling's solution test. The compound containing CH3−C− group give a positive result with the iodoform test in the presence of NaOH, it produced a pale yellow precipitate of iodoform.In Fehling's test, the presence of aldehyde but not ketone is detected by reduction of the deep blue solution of copper (II) to a red precipitate of insoluble copper oxide. Only acetaldehyde will give both the test as it contain s−∂ carbon atom as well as an aldehyde group.
Acetaldehyde gives positive haloform test and positive Fehling's solution test. The compound containing CH3−C− group give a positive result with the iodoform test in the presence of NaOH, it produced a pale yellow precipitate of iodoform.
In Fehling's test, the presence of aldehyde but not ketone is detected by reduction of the deep blue solution of copper (II) to a red precipitate of insoluble copper oxide.
Only acetaldehyde will give both the test as it contain s−∂ carbon atom as well as an aldehyde group.
Suggest Corrections
0
Similar questions
View More
Join BYJU'S Learning Program
Explore more
Join BYJU'S Learning Program
