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

Suggest a reagent for conversion of ethanol to ethanal.

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प्रश्न

Suggest a reagent for conversion of ethanol to ethanal.

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उत्तर

\[\ce{CrO3}\], pyridine and HCl (Pyridinium chlorochromate, PCC) in \[\ce{CH2C12}\].

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अध्याय 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १५९]

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 29 | पृष्ठ १५९

संबंधित प्रश्न

How do you convert the following:

Ethanol to Propan-2-ol


Write the mechanism of the following reaction : 

\[\ce{C2H5OH->[H2SO4][443K]CH2=CH2 + H2O}\]


Give simple chemical test to distinguish between Ethanol and Phenol.


Among the following the one which reacts most readily with ethanol is:


If ethanol dissolves in water, then which of the following would be observed:


Phenol is less acidic than ______.


Phenol can be distinguished from ethanol by the reactions with:

(i) \[\ce{Br2/water}\]

(ii) \[\ce{Na}\]

(iii) Neutral \[\ce{FeCl3}\]

(iv) All the above


Write the IUPAC name of the following compound.

\[\begin{array}{cc}
\phantom{.}\ce{CH3 - CH - CH - CH - CH - CH3}\phantom{}\\
\phantom{......}|\phantom{......}|\phantom{......}|\phantom{.....}|\phantom{........}\\
\phantom{...}\ce{CH3}\phantom{...}\ce{OH}\phantom{...}\ce{C2H5}\phantom{.}\ce{OH}\phantom{...}\end{array}\]


Out of 2-chloroethanol and ethanol which is more acidic and why?


Suggest a reagent for conversion of ethanol to ethanoic acid.


Name the enzymes and write the reactions involved in the preparation of ethanol from sucrose by fermentation.


Match the items of column I with items of column II.

  Column I Column II
(i) Antifreeze used in car engine (a) Neutral ferric chloride
(ii) Solvent used in perfumes (b) Glycerol
(iii) Starting material for picric acid (c) Methanol
(iv) Wood spirit (d) Phenol
(v) Reagent used for detection of phenolic group (e) Ethleneglycol
(vi) By product of soap industry used in cosmetics (f) Ethanol

Assertion: Ethanol is a weaker acid than phenol.

Reason: Sodium ethoxide may be prepared by the reaction of ethanol with aqueous \[\ce{NaOH}\].


Liquor poisoning is due to


Write chemical reactions of following reagents on methoxyethane:

dilute H2SO4


If the starting material is 1-methyl-1,2-epoxy cyclopentane, of absolute configuration, decide which one compound correctly represents the product of its reaction with sodium methoxide in methanol.


How methanol is obtained from methanal.


3, 3-dimethyl-1-butene was subject to following reactions:


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