1. What is heterocyclic compound give an example of 3,4,&5 members. Ring 2.Draw the structure of Ethyl acetate gives its signal & multiplicity 3.Named reactinon,rearrangment reaction & pd reaction(coupling reaction ).it's ask compulsory in all interview 4.What is TLC. How it prepared in laboratory 5.Carbocation carbanion free radical defination

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Answers to questions related to synthetic chemistry including heterocyclic compounds, Ethyl acetate, reactions, TLC, and carbocations.

Heterocyclic compounds contain at least one non-carbon atom in the ring. Examples include pyrrole (5-membered), thiophene (5-membered), and furan (4-membered).
Ethyl acetate has a structure of CH3COOCH2CH3 and its signal appears at around 1.2-2.0 ppm with a multiplicity of quartet.
Examples of named reactions include the Grignard reaction, Diels-Alder reaction, and Friedel-Crafts reaction. Rearrangement reactions include the Claisen rearrangement and the Beckmann rearrangement. Examples of coupling reactions include the Suzuki coupling and the Heck reaction.
TLC (thin-layer chromatography) is a technique used to separate and identify compounds in a mixture. It is prepared by coating a thin layer of stationary phase on a glass plate or plastic sheet.
Carbocations are positively charged carbon atoms, carbanions are negatively charged carbon atoms, and free radicals are atoms or molecules with unpaired electrons.

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