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प्रश्न
Name the reagent used in the following reaction:
Oxidation of a primary alcohol to aldehyde.
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उत्तर
Pyridinium chlorochromate (PCC), C5H5NH+Cr CrO3Cl− (in CH2Cl2) or pyridinium dichromate (PDC), \[\ce{(C5H5N+H)2Cr2O^-_7}\] (in CH2Cl2) is used in the oxidation of a primary alcohol to aldehyde.
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संबंधित प्रश्न
Write the final product(s) in each of the following reactions:
Write the mechanism of the following reaction:
Show how will you synthesize pentan-1-ol using a suitable alkyl halide.
Write the mechanism of acid-catalysed dehydration of ethanol to yield ethene.
Name the reagent used in the following reaction:
Benzyl alcohol to benzoic acid.
By which of the following methods alcohol can be prepared in excellent yield?
Dehydration of 2-butanol yields:
Which one of the following on oxidation gives a ketone?
The compound which gives the most stable carbonium ion on dehydration is:
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.
In Kolbe’s reaction, instead of phenol, phenoxide ion is treated with carbon dioxide. Why?
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?
What happens when (CH3)3 C – OH is heated with Cu/573 K?
Write the chemical equation in support of your answer.
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.
