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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 :
Give the equation of the following reaction:
Dilute HNO3 with phenol.
Give the equation of the following reaction:
Treating phenol with chloroform in the presence of aqueous NaOH.
Lucas reagent is ____________.
Lucas test is used for the detection of _____________.
By which of the following methods alcohol can be prepared in excellent yield?
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.
Explain why is OH group in phenols more strongly held as compared to OH group in alcohols.
Ethers can be prepared by Williamson synthesis in which an alkyl halide is reacted with sodium alkoxide. Di-tert-butyl ether can’t be prepared by this method. Explain.
Why is the C – O – H bond angle in alcohols slightly less than the tetrahedral angle whereas the C – O – C bond angle in ether is slightly greater?
Assertion: Bond angle in ethers is slightly less than the tetrahedral angle.
Reason: There is a repulsion between the two bulky (–R) groups.
Which of the following observation is shown by 2-phenyl ethanol with 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.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
Write the mechanism of acid dehydration of ethanol to yield ethene.
