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प्रश्न
What is meant by the following term? Give an example of the reaction in the following case.
Ketal
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उत्तर
Ketals are cyclic products formed by the reaction of ketones with ethylene glycol in the presence of dry HCl gas.
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संबंधित प्रश्न
Arrange the following in the increasing order of their reactivity towards nucleophilic addition reaction:
C6H5COCH3, CH3-CHO, CH3COCH3
Arrange the following compound in increasing order of its reactivity in nucleophilic addition reactions.
Benzaldehyde, p-Tolualdehyde, p-Nitrobenzaldehyde, Acetophenone.
Hint: Consider steric effect and electronic effect.
What is meant by the following term? Give an example of the reaction in the following case.
Hemiacetal
What is meant by the following term? Give an example of the reaction in the following case.
2, 4-DNP-derivative
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
Complete the synthesis by giving missing starting material, reagent or product.
\[\ce{C6H5CHO ->[H2NCONHNH2]}\]
Write balanced chemical equations for action of ammonia on - acetaldehyde
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.
Reaction of aqueous sodium hydroxide on chlorobenzene gives which of the following products?
Grignard reagent on reaction with acetone forms.
Paraldehyde is formed as a result of polymerisation:-
Write the name of product formed, when acetone is treated with 2, 4-dinitrophenyl hydrazine.
The product of following reaction is
\[\ce{CH3 - CH = CH - CH2 - CHO ->[i) LiAlH4][ii) H3O+]}\] ______?
Which of the following is most reactive in nucleophilic addition reactions?
Give an example of the reaction in the following case.
Imine
