Question

What deductions can you make from the following information? 1. benzene is a hydrocarbon containing 92.3% carbon and a vapour density of 39. 2) under the influence of utra -violet light 1 mole of benzene reacts with 3 moles of chlorine without the production of hydrogen cholride. (3 toluene reacts with alkaline potassium permanganate solution but benzene does not.

Answer 1

1.

We have hydrocarbon CxHy

n of C : n of H = x:y = 0.923/12 :
0.077/1 = 1:1 It have general formula CnHn

2.

CnHn + 3Cl2 =
CnHnCl6
It must have three double bonds ( or maby 2 triple
bonds)

3. CnHn is aromatic compounds without chains outside the aromatic
ring