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Alcohols, Phenols, and Ethers — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryAlcohols, Phenols, and Ethers1 Mark
MCQ
Which of the following compounds will react with sodium hydroxide solution in water?
  • ✓
    $ \mathrm{C}_6 \mathrm{H}_5 \mathrm{OH} . $
  • B
    $ \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{OH} . $
  • C
    $ \left(\mathrm{CH}_3\right)_3 \mathrm{COH} . $
  • D
    $ \mathrm{C}_2 \mathrm{H}_5 \mathrm{OH} $
✓

Answer

Correct option: A.
$ \mathrm{C}_6 \mathrm{H}_5 \mathrm{OH} . $
Phenol being more acidic reacts with sodium hydroxide solution in water to give sodium phenoxide which is resonance stabilized.
Alcohols are very weak acids.
$\mathrm{C}_6 \mathrm{H}_5 \mathrm{OH}+\mathrm{NaOH} \rightarrow \mathrm{C}_6 \mathrm{H}_5 \mathrm{ONa}+\mathrm{H}_2 \mathrm{O}$

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