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UP Board XII
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Chemistry
List of top Chemistry Questions on Aromaticity & chemistry of aromatic compounds asked in UP Board XII
Why is chlorine atom of chlorobenzene less reactive than chlorine atom of chloroethane? Write chemical equations of reactions of chlorobenzene with (A) Cl$_2$ and (B) conc. H$_2$SO$_4$.
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
Write short notes on the following:
(A) Electrophilic substitution in halobenzene,
(B) Wurtz–Fittig reaction,
(C) Applications of Grignard’s reagent.
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
State the name and formula of electrophile used in the nitration of benzaldehyde.
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
How will you obtain the following from Chlorobenzene? (Write only chemical equations)
(i) Picric Acid
(ii) Dichlorobenzene
(iii) Chlorobenzene Sulphonic Acid
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
An aromatic organic compound A on treatment with aqueous ammonia and heating forms compound B, which on heating with Br$_2$ and KOH forms a compound C of molecular formula C$_6$H$_7$N. Write the structures and names of compounds A, B and C.
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
How will you convert chlorobenzene into the following? (Write chemical equations only)
(i) Benzene
(ii) Phenol
(iii) Toluene
(iv) Aniline
(v) Diphenyl
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
Explain the Resonance effect in nucleophilic substitution reactions of Haloarenes.
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds
In spite of being an electron withdrawing group, why does chlorine act as ortho-para directing group in aromatic electrophilic substitution reactions?
UP Board XII - 2023
UP Board XII
Chemistry
Aromaticity & chemistry of aromatic compounds