Advertisements
Advertisements
Question
What is meant by the following term? Give an example of the reaction in the following case.
2, 4-DNP-derivative
Advertisements
Solution
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
RELATED QUESTIONS
Predict the products of the following reactions:
Draw the structure of the semicarbazone of ethanal.
What is meant by the following term? Give an example of the reaction in the following case.
Schiff’s base
Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.
Semicarbazide and weak acid
Predict the products formed when cyclohexanecarbaldehyde reacts with the following reagents.
Excess ethanol and acid
How will you bring about the following conversion in not more than two steps?
Bromobenzene to 1-Phenylethanol
Explain the mechanism of alkaline hydrolysis of tert-butyl bromide with energy profile diagram.
Write balanced chemical equations for action of ammonia on - acetone
Write the main product formed when propanal reacts with the following reagents:
H2N- NH2 followed by heating with KOH in ethylene glycol.
Write a test to differentiate between pentan-2-one and pentan-3-one.
The pH of blood does not appreciably change by a small addition of acid or base because
Which one of the following gives only one monochloro derivative?
Which of the following has the most acidic hydrogen?
Grignard reagent on reaction with acetone forms.
What happens when propanone is treated with CH3MgBr and then hydrolysed?
The product "P" in the above reaction is:
Write the structure of the product formed when acetone reacts with 2, 4 DNP reagent.
Draw the structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
Draw structure of the following derivative.
The ethylene ketal of hexan-3-one
