मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Name the reagent used in the following reaction: Oxidation of a primary alcohol to aldehyde.

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प्रश्न

Name the reagent used in the following reaction:

Oxidation of a primary alcohol to aldehyde.

अति संक्षिप्त उत्तर
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उत्तर

Pyridinium chlorochromate (PCC), C5H5NH+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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पाठ 7: Alcohols, Phenols and Ethers - Exercises [पृष्ठ २२३]

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एनसीईआरटी Chemistry Part 1 and 2 [English] Class 12
पाठ 7 Alcohols, Phenols and Ethers
Exercises | Q 7.21 (ii) | पृष्ठ २२३

संबंधित प्रश्‍न

Show how will you synthesize pentan-1-ol using a suitable alkyl halide.


Give the equation of the following reaction:

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Lucas reagent is ____________.


By which of the following methods alcohol can be prepared in excellent yield?


Which of the following are used to convert RCHO into RCH2OH?

(i) H2/Pd

(ii) LiAlH4

(iii) NaBH4

(iv) Reaction with RMgX followed by hydrolysis


Which of the following is not true in case of reaction with heated copper at 300°C?


Cyclohexene is best prepared from cyclohexanol by which of the following:


Identify the secondary alcohols from the following set:

  1. \[\ce{CH3CH2CH(OH)CH3}\]
  2. \[\ce{(C2H5)3COH}\]



Mark the correct increasing order of reactivity of the following compounds with HBr/HCl.

(a)
(b)
(c)

Suggest a reagent for the following conversion.


Explain why is OH group in phenols more strongly held as compared to OH group in alcohols.


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Reason: There is a repulsion between the two bulky (–R) groups.


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Which of the following observation is shown by 2-phenyl ethanol with Lucas Reagent?


Write the mechanism of acid-catalysed 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.


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