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प्रश्न
Name the reagent used in the following reaction:
Oxidation of a primary alcohol to carboxylic acid.
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उत्तर
Acidified potassium dichromate or neutral, acidic or alkaline KMnO4 is used in the oxidation of primary alcohol to carboxylic acid.
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संबंधित प्रश्न
Write the final product(s) in each of the following reactions:
Write the mechanism of the following reaction :
Ortho and para nitrophenols are more acidic than phenol. Draw the resonance structures of the corresponding phenoxide ions.
Show how will you synthesize pentan-1-ol using a suitable alkyl halide.
Give the equation of the following reaction:
Oxidation of propan-1-ol with alkaline KMnO4 solution.
When 3-methylbutan-2-ol is treated with HBr, the following reaction takes place:
\[\begin{array}{cc}
\phantom{.......................}\ce{Br}\\
\phantom{......................}|\\
\ce{CH3 - CH - CH - CH3 ->[HBr] CH3 - C - CH2 - CH3}\\
\phantom{.}|\phantom{......}|\phantom{......................}|\phantom{........}\\
\phantom{}\ce{CH3}\phantom{...}\ce{OH}\phantom{...................}\ce{CH3}\phantom{.....}
\end{array}\]
Give a mechanism for this reaction.
(Hint: The secondary carbocation formed in step II rearranges to a more
stable tertiary carbocation by a hydride ion shift from 3rd carbon atom.)
Write the mechanism (using curved arrow notation) of the following reaction :
Lucas reagent is ____________.
Lucas test is used for the detection of _____________.
In the reduction \[\ce{R - CHO + H2 -> RCH2OH}\] the catalyst used is:
Which one of the following on oxidation gives a ketone?
\[\ce{CH3CH2OH}\] can be converted into \[\ce{CH3CHO}\] by ______.
Identify the secondary alcohols from the following set:
- \[\ce{CH3CH2CH(OH)CH3}\]
- \[\ce{(C2H5)3COH}\]
Name the factors responsible for the solubility of alcohols in water.
Alcohols react with active metals e.g. Na, K etc. to give corresponding alkoxides. Write down the decreasing order of reactivity of sodium metal towards primary, secondary and tertiary alcohols.
What is Lucas reagent?
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
