Question

Test to distinguish between benzaldehyde and benzoic acid with reaction

Answer 1

Benzaldehyde & benzoic acid can be distinguish by cannizzaro's reaction.As benzaldehyde can give cannizzaro's reaction and benzoic acid donot give this reaction.

Answer 2

Mainly there are two tests to distinguish betwen benzaldehyde and benzoic acid which are sodium bicarbonate test and litmus test.

Explanation:

Test - 1

• Benzaldehyde doesn't react with sodium bicarbonate whereas when we react benzoic acid with sodium bicarbonate then it will produce a brisk effervescence.

• And hence we can clearly distinguish between the two compounds. Reaction is given below.

      $C_6H_5COOH + NaHCO_3 \rightarrow C_6H_5COONa + H_2O + CO_2$

Test - 2

• This will confirm that it is the presence of benzoic acid.

• For benzaldehyde, if it does not change into any colour we conclude that there is no presence of benzaldehyde.

    $Benzoic acid + Blue litmus paper\rightarrow$ turns to red.

Learn more about benzoic acid

How to transform toluene into benzene, benzyl alcohol and benzoic acid?

https://brainly.in/question/5488366

Compare acidic strength of acetic acid, phenol, benzoic acid and chloroacetic acid

https://brainly.in/question/2762826