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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 one sentence/ word.
Write the IUPAC name of alcohol having molecular formula C4H10O which is resistant towards oxidation.
Oxidation of ethyl alcohol using K2Cr2O7/dil H2SO4 leads to formation of _______________
What is the action of following on phenol at low temperature?
- dil. HNO3
- conc. H2SO4
- Br2/CS2
How will you bring about the following conversions?
isopropyl alcohol to acetone
How will you bring about the following conversions?
2-methyl propan-2-ol to 2-methylpropene
How will you bring about the following conversions?
acetone to 2-methylpropan-2-ol
In the Lucas test for alcohols, the appearance of turbidity is due to the formation of ____________.
Which of the following reagents are required in the conversion of phenol to salicylic acid?
Bromination of phenol, will NOT give:
Which of following elements does not react with hot concentrated sulphuric acid?
\[\ce{CH3 - CH = CH2 ->[HBr][Peroxide] A}\]
Identify A.
Identify reagents X, Y and Z.
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
Which of the following conversion explains the acidic nature of alcohols?
Which following reagent is used to obtain alkene from alcohol?
Which among the following compounds is used to prepare solid fuel using calcium acetate?
Which of the following alcohols is least soluble in water?
Identify the alcohol that reacts immediately with Lucas reagent?
Identify the product X in the following reaction.
\[\ce{Phenol ->[Na2Cr2O7][H2SO4] X}\]
Name the catalyst used in commercial method of preparation of phenol.
Amongst the following alcohols which would react fastest with cone. HCl and ZnCl2?
Which among the following is not the method of preparation of phenol?
Write the product when 1°, 2° and 3° alcohol vapours are passed over hot copper.
Write the chemical reaction when hot copper is treated with Vapours of 2° (secondary) alcohol.
Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.
Explain: Phenols are acid while alcohol is neutral.
Which of the following is trihydric phenol?
