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Aldehydes, Ketones and Carboxylic Acids
Question
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Give simple tests to distinguish between the following pairs of compounds:
Phenol and Benzoic acid

Answer

Phenol and Benzoic acid: Phenol and benzoic acid can be distinguished from each other by sodium bicarbonate test. To the solutions of both benzoic acid and phenol, add a small amount of solid bicarbonate. Whereas benzoic acid gives brisk effervescence of carbon dioxide which turns lime water milky, phenol does not react.
C6H5COOH + NaHCO3 → C6H5COONa + CO2 ↑ + H2O
C6H5OH + NaHCO3 → No reaction

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Some More Questions From Aldehydes, Ketones and Carboxylic Acids Chapter

Write the structures of the following compounds.
2-Hydroxycyclopentane carbaldehyde

Write the structures of the following compounds.
4-oxopentanal    

Write the structures of the following compounds.
Di-sec-butyl ketone

Write the structures of the following compounds.
4-fluoro acetophenone.

Write the structures of the following reactions:

Write the structures of products of the following reactions:


    

Arrange the following compounds in increasing order of their boiling points:
CH3CHO, CH3CH2OH, CH3OCH3, CH3CH2CH3.

Arrange the following compounds in increasing order of their reactivity in nucleophilic addition reactions:    
Ethanal, Propanal, Propanone, Butanone.