Treatment of cycloheptatriene with one equivalent of bromine gave an oily dibromide that on heating in vacuum at 70° left tropylium bromide, c7h7br, as yellow crystals, melting point 198-200°. tropylium bromide is an unusual organic bromide, intrinsically colored and soluble in water but not in non-polar organic solvents like hexane. draw the structure of tropylium bromide.

Explanation:

The given properties of tropylium bromide imply that this should be an ionic compound. Let's see why and how:

Tropylium bromide is produced by removing a proton from the cycloheptatriene ring and producing a positively charged carbon. Its charge is balanced by the negatively charged bromide. Thus, we should draw a cycloheptatriene ring (ring with 7 carbons and 3 double bonds) with bromide anion adjacent to it to balance the carbon's positive charge. The image below illustrates this.

the answer to your question is c

thats how its supposed to be