benzene and its compound

benzene and its compound

Multiple Select

which of the following defines benzene, C₆H₆?

(tick the box/boxes you think is/are correct)

• a hexagon made of 6 carbon atoms

• when one or more benzene rings combined, its called arenes

• classified as aromatic compounds

• it is classified as hydrocarbon

​characteristic of benzene

Multiple Choice

what is the mechanism of benzene?

• electrophilic substitution

• nucleophilic substitution

• nucleophilic substitution

• nucleophilic addition

Multiple Select

electrophilic substitution with chlorine/bromine.

what are the reagents and conditions needed?

• Br_2, anhydrous AlBr₃ catalyst

• Br_2, anhydrous FeBr₃ catalyst

Multiple Select

nitration of benzene.

tick the reagents and conditions needed.

• concentrated HNO3

  concentrated H2SO4

• aqueous HNO3

  aqueous H2SO4

• refluxed at 55^oC

• refluxed at 20^oC

• nitronium ion, NO₂⁺ ion formed as electrophile

Multiple Select

which statement is/are correct for oxidation of the side-chain in arenes

• oxidizing agent : potassium manganate (VII)

• refluxed and added with H₂SO₄ after

• any side chain arenes will be converted to benzoic acid