Difference Between Benzaldehyde and Benzophenone

The key difference between benzaldehyde and benzophenone is that benzaldehyde is an aldehyde, whereas benzophenone is a ketone. ... However, benzaldehyde has one phenyl group attached to the carbonyl group because the other side of this carbonyl carbon has a hydrogen atom since it is an aldehyde.

1. How will you distinguish between benzaldehyde and acetaldehyde?
2. Does benzaldehyde give iodoform test?
3. Which test would you use to distinguish between benzaldehyde and propanal?
4. How can you tell the difference between acetophenone and benzophenone?
5. Can benzaldehyde give tollen's test?
6. Which will not give iodoform test?
7. Which does not give Fehling's test?
8. Which alcohol does not give iodoform test?
9. How will you distinguish between Ethanal and propanal?
10. How will you distinguish between propanal and propanone?
11. How do you convert benzaldehyde to benzophenone?

How will you distinguish between benzaldehyde and acetaldehyde?

Thus Benzaldehyde & Acetaldehyde can be differentiated using Iodoform and Fehling test.

Does benzaldehyde give iodoform test?

The iodoform test is used to detect the presence of acyl groups in the given compound. ... We can see that acetaldehyde has an acyl group whereas benzaldehyde does not. Thus, the test will give a positive result for acetaldehyde and a negative result for benzaldehyde. Now, consider the Tollens reagent.

Which test would you use to distinguish between benzaldehyde and propanal?

(i) Propanal (CH₃CH₂CHO) can be distinguished from propanone (CH₃COCH₃) by iodoform test. (ii) Benzaldehyde (C₆H₅CHO) and acetophenone (C₆H₅COCH₃) can be distinguished by iodoform test.

How can you tell the difference between acetophenone and benzophenone?

Acetophenone is a methyl ketone, whereas benzophenone is a phenyl ketone. Therefore, acetophenone gives a positive iodoform test by giving a yellow precipitate of iodoform with an alkaline solution of iodine. Whereas, benzophenone gives a negative test.

Can benzaldehyde give tollen's test?

Aldehydes such as benzaldehyde, lack alpha hydrogens and cannot form an enolate and thus do not give a positive test with Fehling's solution which is comparatively a weaker oxidizing agent than Tollen's reagent, under usual conditions. Therefore, it tests negative.

Which will not give iodoform test?

Due to delocalisation of electrons, there is presence of o adjacent to carbonyl. Therefore, acetic acid does not give iodoform test.

Which does not give Fehling's test?

Aldehydes that lack alpha hydrogens, such as benzaldehyde or pivalaldehyde (2,2-dimethylpropanal) cannot form an enolate and thus do not give a positive Fehling's test result under usual conditions.

Which alcohol does not give iodoform test?

Benzyl alcohol does not have the CH3CO- group or CH3CH2O- so it will not give the positive iodoform test.

How will you distinguish between Ethanal and propanal?

Solution 2

Ethanal and propanal can be distinguished by iodoform test. Aldehydes and ketones having at least one methyl group linked to the carbonyl carbon atom responds to the iodoform test. ... But propanal does not have a methyl group linked to the carbonyl carbon atom and thus, it does not respond to this state.

How will you distinguish between propanal and propanone?

Propanal and Propanone : These two are distinguished by the iodoform test. propanal does not give iodoform test when it reacts with I₂ in the presence of NaOH while propanone give iodoform test when reacts with I₂ in the presence of NaOH.

How do you convert benzaldehyde to benzophenone?

Convert benzaldehyde to benzophenone

1. use KMnO4 to convert it into benzoic acid.
2. react benzoic acid with SOCl2 to get C6H5Cl.
3. react C6H5Cl with anhydrous AlCl3 to get benzophenone.