[" 1) acetylent "(1)/(25." The centric structure of benzene was proposed by ")],[" (crill "((25." The centric structure of benzene was proposed by ")/(" (a) Dewar ")" (b) Ladenberg and Baeyer "],[" ( "pi=1" .(c) Kekule "]

The centric formula of benzene was proposed by

The ring structure of benzene was first proposed by :

The two structures of benzene proposed by Kekule differ in

The planar regular hexagonal structure of benzene was first proposed by

The structure of ( 1 -methylbutyl) benzene is

Write the structural formula of 1,2-Dibromo benzene.

Fill in the blanks with appropriate words. Benzene has a planar structure. All carbon atoms in benzene are (I)____ hybridised. The ring structure of benzene was proposed by (II)________. It shows (III)_______substitution reactions. It reacts with (IV)_________in presence of aluminium chloride to form acetophenone.