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

Assertion: Ethanol is a weaker acid than phenol. Reason: Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.

Advertisements
Advertisements

प्रश्न

Assertion: Ethanol is a weaker acid than phenol.

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

विकल्प

  • Assertion and reason both are correct and reason is correct explanation of assertion.

  • Assertion and reason both are wrong statements.

  • Assertion is correct statement but reason is wrong statement.

  • Assertion is wrong statement but reason is correct statement.

  • Both assertion and reason are correct statements but reason is not correct explanation of assertion.

MCQ
Advertisements

उत्तर

Assertion is correct statement but reason is wrong statement.

Explanation:

Phenol is stronger acid than ethanol as phenoxide ion is stabilized by resonance whereas no such stabilization occurs in ethoxide ion. Sodium ethoxide can be prepared by reaction of ethanol with sodium.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Alcohols, Phenols and Ethers - Multiple Choice Questions (Type - I) [पृष्ठ १६४]

APPEARS IN

एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
अध्याय 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 68 | पृष्ठ १६४

संबंधित प्रश्न

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


Wood spirit is known as acetone:


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.

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


What is denatured alcohol?


Suggest a reagent for conversion of ethanol to ethanal.


Suggest a reagent for conversion of ethanol to ethanoic acid.


Arrange the following compounds in increasing order of acidity and give a suitable explanation.

Phenol, o-nitrophenol, o-cresol


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


Dipole moment of phenol is smaller than that of methanol. Why?


Arrange water, ethanol and phenol in increasing order of acidity and give reason for your answer.


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

  Column I Column II
(i) Methanol (a) Conversion of phenol to o-hydroxysalicylic acid
(ii) Kolbe’s reaction (b) Ethyl alcohol
(iii) Williamson’s synthesis (c) Conversion of phenol to salicylaldehyde
(iv) Conversion of 2° alcohol to ketone (d) Wood spirit
(v) Reimer-Tiemann reaction (e) Heated copper at 573 K
(vi) Fermentation (f) Reaction of alkyl halide with sodium alkoxide

Which reagent can convert acetic acid into ethanol?


Liquor poisoning is due to


Alcoholic fermentation is brought about by the action of


Which of the following is known as wood spirit?


Write chemical reactions of following reagents on methoxyethane:

dilute H2SO4


How methanol is obtained from methanal.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×