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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 name of the electrophile used in Kolbe’s Reaction.
Answer in brief.
Explain why phenol is more acidic than ethyl alcohol.
Answer in brief.
Give the reagents and conditions necessary to prepare phenol from Benzene sulfonic acid.
Arrange the following in decreasing order of acid strength.
CH3OH, CH3–CH2–OH, CH3–CH(OH)–CH3, (CH3)3–C–OH
Write chemical equation of acetyl chloride with phenol
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
Write chemical reactions to convert phenol into salicyaldehyde. Write the name of the reaction. What happens when if CCl4 is used instead of CHCl3 in the above reaction.
Phenol reacts with concentrated nitric acid in the presence of cone. H2SO4 to form ____________.
Number of oxygen atoms present in salicylaldehyde are ______.
Which of the following compounds does not react with bromine in alkaline medium?
The secondary alcohol is ____________.
Isobutylene on hydroboration followed by oxidation with hydrogen peroxide in presence of base yields ______.
The number of isomeric alcohols possible with the formula C4H10O is ____________.
\[\ce{CH3 - CH = CH2 ->[HBr][Peroxide] A}\]
Identify A.
The product 'C' in the following reaction is:
\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]
The most resistant alcohol towards oxidation reaction is:
Which of the following reagents is used to convert phenol to benzene?
In Raschig's method for synthesis of phenol, the reactants used are ____________.
The number of moles of hydrogen gas formed when 2 moles of 2-methylpropan-2-ol reacts with aluminium is ____________.
Which isomer of C4H10O is optically active?
Which following reagent is used to obtain alkene from alcohol?
Identify the alcohol that reacts immediately with Lucas reagent?
The compound which reacts fastest with Lucas reagent at room temperature is ______.
Name the catalyst used in commercial method of preparation of phenol.
Arrange O - H, C - H and N - H bonds in increasing order of their bond polarity.
Propene can be converted into propan-1-ol by:
What is the commercial method of preparation of phenol?
