Advertisements
Advertisements
प्रश्न
What is meant by the following term? Give an example of the reaction in the following case.
2, 4-DNP-derivative
Advertisements
उत्तर
When an aldehyde or ketone reacts with 2, 4-dinitrophenylhydrazine in a weak acidic medium, 2, 4-dinitrophenylhydrazone (2, 4-DNP derivative) is produced.

APPEARS IN
संबंधित प्रश्न
What is meant by the following term? Give an example of the reaction in the following case.
Oxime
Acetaldehyde, Acetone, Di-tert-butyl ketone, Methyl tert-butyl ketone (reactivity towards HCN)
What are amines?
How will you convert sodium acetate to methane?
Write the main product formed when propanal reacts with the following reagents:
2 moles of 3 CH OH in presence of dry HCl
Alkenes
and carbonyl compounds
, both contain a π bond but alkenes show electrophilic addition reactions whereas carbonyl compounds show nucleophilic addition reactions. Explain.
Identify the compounds A, B and C in the following reaction.
\[\ce{CH3 - Br ->[Mg/ether] (A) ->[(i) CO][(ii) Water] (B) ->[CH3OH/H+][Δ] (C)}\]
Which one of the following gives only one monochloro derivative?
A Idol condensation will not be observed in
Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.
The increasing order of the following compounds towards HCN addition is:
| (i) | ![]() |
| (ii) | ![]() |
| (iii) | ![]() |
| (iv) | ![]() |
Draw structures of the given derivatives.
The ethylene ketal of hexan-3-one
Draw structures of the following derivative.
The ethylene ketal of hexan-3-one
Draw the structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structures of the following derivatives.
Acetaldehydedimethylacetal
Draw structure of the following derivative:
Acetaldehydedimethylacetal
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw the structure of the following derivative.
Acetaldehydedimethylacetal
Draw structures of the given derivatives.
The ethylene ketal of hexan-3-one
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one




