To distinguish between formaldehyde and ...

To distinguish between formaldehyde and acetaldehyde, we require

A

Tollens reagent

B

Fehling's solution

C

Schiff's reagent

D

Caustic soda solution

Text Solution

Verified by Experts

The correct Answer is:

D

`2 HCHO overset (NaOH) underset ("Cone") to CH_(3) OH + HCOONa`
It is a Cannizaro's reaction
`2CH_(3)CHO overset(NaOH)underset(dil) to CH_(3)-overset(OH)overset(|)(CH)-CH_(2)-CHO`
It is aldol condesation reaction.

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Knowledge Check

Which of the following reagents can distinguish between acetaldehyde and benzaldehyde ?

A

`NH_(4)OH`

B

Benedict's solution

C

DNB

D

None of the above.

The most appropriate reagent to distinguish between acetaldehyde and formaldehyde is :

A

Fehling's solution

B

Tollen's reagent

C

Schiff's reagent

D

iodine in presence of base

The most appropriate reagent to distinguish between acetaldehyde and formaldehyde is :

A

Fehling's solution

B

Tollen's reagent

C

Schiff's reagent

D

iodine in presence of base

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