Respuesta :
the answer is both B and C
positive chromic acid test is indicated by disappearance of orange colour from chromic ions and appearance of blue-green color from Chromium (iii) ion (reduction of chromium ion from CrO4 - to Cr3+)
positive chromic test indicated functional groups that can be oxidized.
cyclohexanol can be oxidized to become cyclohexanone
and pentan-3-ol can be oxidized to become pentan-3-one
hence both B and C will show positive chromic acid test
A) tert butanol although contains alcohol functional group, cannot be further oxidized as it is a tertiary alcohol
positive chromic acid test is indicated by disappearance of orange colour from chromic ions and appearance of blue-green color from Chromium (iii) ion (reduction of chromium ion from CrO4 - to Cr3+)
positive chromic test indicated functional groups that can be oxidized.
cyclohexanol can be oxidized to become cyclohexanone
and pentan-3-ol can be oxidized to become pentan-3-one
hence both B and C will show positive chromic acid test
A) tert butanol although contains alcohol functional group, cannot be further oxidized as it is a tertiary alcohol
(E) Both B and C
What is chromic acid test?
- The chromic acid test uses the Jones reactant to oxidize aldehydes and alcohols and reduce the chromic acid, resulting in a color change.
- Positive chromic acid test is indicated by disappearance of orange color from chromic ions and appearance of blue-green color from Chromium (III) ion (reduction of chromium ion from [tex]CrO_4^- \text{to } Cr^{3+}[/tex])
Positive chromic test indicated functional groups that can be oxidized.
⇒Cyclohexanol can be oxidized to become cyclohexanone.
⇒Pentan-3-ol can be oxidized to become pentan-3-one.
Hence, both B and C will show positive chromic acid test.
A) tert-butanol although contains alcohol functional group, cannot be further oxidized as it is a tertiary alcohol.
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