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Question
What is denatured alcohol?
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Solution
Alcohol is made unfit for drinking by mixing some copper sulphate and pyridine in it. This is called denatured alcohol.
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RELATED QUESTIONS
Write the mechanism of the following reaction :
\[\ce{C2H5OH->[H2SO4][443K]CH2=CH2 + H2O}\]
Give simple chemical test to distinguish between Ethanol and Phenol.
Wood spirit is known as acetone:
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(i) \[\ce{Br2/water}\]
(ii) \[\ce{Na}\]
(iii) Neutral \[\ce{FeCl3}\]
(iv) All the above
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\[\begin{array}{cc}
\phantom{.}\ce{CH3 - CH - CH - CH - CH - CH3}\phantom{}\\
\phantom{......}|\phantom{......}|\phantom{......}|\phantom{.....}|\phantom{........}\\
\phantom{...}\ce{CH3}\phantom{...}\ce{OH}\phantom{...}\ce{C2H5}\phantom{.}\ce{OH}\phantom{...}\end{array}\]
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Phenol, o-nitrophenol, o-cresol
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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 |
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| (v) | Reagent used for detection of phenolic group | (e) Ethleneglycol |
| (vi) | By product of soap industry used in cosmetics | (f) Ethanol |
Match the items of column I with items of column II.
| Column I | Column II | |
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| (ii) | Kolbe’s reaction | (b) Ethyl alcohol |
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| (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 |
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Reason: Sodium ethoxide may be prepared by the reaction of ethanol with aqueous \[\ce{NaOH}\].
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Propanenitrile to ethanol.
Tonics in general contain
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Give IUPAC names of the following compounds:
\[\begin{array}{cc}
\ce{CH3 - CH - CH - CH - CH2-OH }\\
|\phantom{......}|\phantom{......}|\phantom{.......}\\
\ce{Cl}\phantom{....}\ce{CH3}\phantom{...}\ce{CH3}\phantom{.....}
\end{array}\]
