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

What is denatured alcohol? - Chemistry

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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 [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? 


How do you convert the following:

Ethanol to Propan-2-ol


Give simple chemical test to distinguish between Ethanol and Phenol.


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


Wood spirit is known as acetone:


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.

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


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?


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


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


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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