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Which one of the following undergoes reaction with 50% sodium hydroxide solution to give the corresponding alcohol and acid?

  • Option 1)

    Phenol

  • Option 2)

    Benzaldehyde

  • Option 3)

    Butanol

  • Option 4)

    Benzoic acid.

 

Answers (1)

As we learnt in 

Cannizzaro's reaction -

Shown by aldehydes which do not have \alpha- H atom and undergo disproportion (self-oxidation reduction) process to produce alcohol and carboxylic acid salt.

- wherein

2HCHO\overset{conc.NaOH}{\rightarrow}HCOONa+CH_{3}OH

 

 It is a cannizzaro reaction

Thus, A is an aldehyde without \alpha -hydrogen \: atom


Option 1)

Phenol

This option is incorrect

Option 2)

Benzaldehyde

This option is correct

Option 3)

Butanol

This option is incorrect

Option 4)

Benzoic acid.

This option is incorrect

Posted by

Sabhrant Ambastha

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