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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Write two points of difference between the properties of phenol and ethyl alcohol.

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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.

फरक स्पष्ट करा
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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.
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पाठ 11: Alcohols, Phenols and Ethers - Exercises [पृष्ठ २५३]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 11 Alcohols, Phenols and Ethers
Exercises | Q 3.3 | पृष्ठ २५३

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.

Explain why p-nitrophenol is a stronger acid than phenol.


An ether (A), C5H12O, when heated with excess of hot HI produce two alkyl halides which on hydrolysis form compound (B) and (C), oxidation of (B) gave and acid (D), whereas oxidation of (C) gave a ketone (E). Deduce the structural formula of (A), (B), (C), (D), and (E).


With the help of chemical equations show what happens when cumene hydroperoxide is treated with dil. acid.


Write chemical equation of acetyl chloride with phenol


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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


Which of the following reagents are required in the conversion of phenol to salicylic acid?


Which of the following compounds is obtained, when phenol react with bromine water?


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The secondary alcohol is ____________.


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The product 'C' in the following reaction is:

\[\ce{CH3CH2Br ->[alc. KCN] {'A'} ->[H3O^+][\Delta] {'B'} ->[i. LiAlH4][ii. H3O^+] {'C'}}\]


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\[\ce{Isopropyl alcohol + acidic K2Cr2O7 -> X}\]

Identify product 'X' in the above reactions.


Which isomer of C4H10O is optically active?


The number of σ bonds in carbolic acid is ______.


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Identify the product obtained when phenol is treated with bromine water?


Identify the role of PDC from the following.


Write chemical reaction when hot copper is treated with Vapours of 3° (tertiary) alcohol.


Arrange the following compounds in order of decreasing acidity:


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