(a)
Interpretation:
The structures of dibromobenzene derivatives are to be drawn by assuming the correctness of Kekule structure of benzene.
Concept introduction:
Kekule structure is the representation of a compound by its Lewis structure. In this structure, the covalent bonds are shown for the bonded electron pairs. Melting point of a compound depends upon its molecular symmetry.
(b)
Interpretation:
The structures of dibromobenzene derivatives are to be assigned by assuming the correctness of Ladenburg structure of benzene.
Concept introduction:
Ladenburg benzene structure is also known as Prismane structure. The carbon and hydrogen atoms of a benzene molecule are represented as three prismane structures arranged in the form of a triangular prism.
(c)
Interpretation:
The mononitration products which were formed in the least amount are to be identified.
Concept introduction:
Nitration is a process in which a nitro group is substituted on the
(d)
Interpretation:
The differences in the spectra of dibromobenzene derivaties are to be stated.
Concept introduction:
The NMR spectroscopy is used to determine the number of equivalent and non equivalent carbon atoms and to identify the type of carbon atoms present in the compound.
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