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

What is denatured alcohol?

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प्रश्न

What is denatured alcohol?

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उत्तर

Alcohol is made unfit for drinking by mixing some copper sulphate and pyridine in it. This is called denatured alcohol.

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

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एनसीईआरटी एक्झांप्लर Chemistry Exemplar [English] Class 12
पाठ 11 Alcohols, Phenols and Ethers
Multiple Choice Questions (Type - I) | Q 26 | पृष्ठ १५९

संबंधित प्रश्‍न

Write resonance structures of aniline. What is the action of benzene diazonium chloride on ethanol? 


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


Methanol and ethanol are miscible in water due to ____________.


Which of the following is correct?


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.

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


Suggest a reagent for conversion of ethanol to ethanoic acid.


The carbon-oxygen bond in phenol is slightly stronger than that in methanol. Why?


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

Assertion: Ethanol is a weaker acid than phenol.

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


Which reagent can convert acetic acid into ethanol?


Tonics in general contain


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.


Give IUPAC names of the following compounds:

 \[\begin{array}{cc}
\ce{CH3 - CH - CH - CH - CH2-OH }\\
|\phantom{......}|\phantom{......}|\phantom{.......}\\
\ce{Cl}\phantom{....}\ce{CH3}\phantom{...}\ce{CH3}\phantom{.....}
\end{array}\]


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