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प्रश्न
Write two points of difference between the properties of phenol and ethyl alcohol.
Write four points of difference between the properties of phenol and ethyl alcohol.
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उत्तर
| Phenol | Ethyl alcohol | |
| i. | Phenol is a low melting solid. | Ethyl alcohol is liquid. |
| ii. | The aqueous solution of phenol turns blue litmus to red, i.e., phenol is weakly acidic. | The aqueous solution of ethyl alcohol is neutral to litmus, i.e, ethyl alcohol is neutral. |
| iii. | Phenol reacts with aqueous NaOH to form sodium phenoxide. | Ethyl alcohol does not react with aqueous NaOH. |
| iv. |
Phenol reacts with neutral ferric chloride solution to give deep purple colouration of ferric phenoxide. |
Ethyl alcohol does not react with neutral ferric chloride. |
संबंधित प्रश्न
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Answer in brief.
Explain why p-nitrophenol is a stronger acid than phenol.
How will you bring about the following conversions?
acetone to 2-methylpropan-2-ol
An organic compound gives hydrogen on reaction with sodium metal. It forms an aldehyde with molecular formula C2H4O on oxidation with pyridinium chlorochromate. Give the chemical equations in support of these observations.
Which alcohol is difficult to oxidise?
Which of the following compounds is obtained, when phenol react with bromine water?
In phenols, −OH group is attached to ___________ hybridised carbon.
Bromination of phenol, will NOT give:
The secondary alcohol is ____________.
Phenol is ____________.
Carbolic acid is oxidised by acidified sodium dichromate to give ______.
In Dow process, chlorobenzene is converted into phenol by ____________.
Phenoxide ion is more stable than phenol due to the ____________.
Which of the following is INCORRECT regarding phenol?
The most resistant alcohol towards oxidation reaction is:
Which of the following reagents is used to convert phenol to benzene?
(I)
(II) \[\ce{P + Zn ->[\Delta] Q}\]
(III) \[\ce{P ->[Na2Cr2O7][H2SO4] R}\]
Q and R are respectively:
Which following reagent is used to obtain alkene from alcohol?
Which of the following on oxidation yields ethyl methyl ketone?
Identify product B in the following conversion?
\[\ce{Phenol ->[NaOH] A ->[CH3I] B}\]
Which of the following alcohols is NOT prepared by reduction of carbonyl compounds?
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
The acid, which contains both -OH and -COOR groups is ______.
What is the product formed when aniline is treated with \[\ce{NaNO2 + HCl}\] previous to hydrolysis?
Which of the following compounds reacts immediately with Lucas reagent?
What is the action of nitrous acid on aniline?
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.
Explain: Phenols are acid while alcohol is neutral.
