why sodium chloride solution i

Jeffery, 玩夠喇, 亂答完問題之後可以翻去溫書喇, 拜拜.

it's strange for you to ask this question:
1. why not to answer "zeotrope"? if it's the true answer, then what can we say to answer you?
2. what's the "reaction product" between sodium chloride and water?? even F.3 students can answer you "a cup of salty water"!

since you didn't specify the reaction of formation of cyclohexene, i assume it's dehydration of cyclohexanol with conc. H2SO4.

H2SO4 is soluble in water and some organic solvents. to remove H2SO4 from the product mixture, water is used to extract the acid.
to increase the solubility of acid in water, NaCl is added to raise the polarity of water, making acid more soluble in NaCl solution (and less soluble in the organics).


chlorocyclohexane is NOT formed in this way. it involves addition of HCl;
there's NO such thing like "hydrocyclohexane".
your creativity is applied on wrong field ---- you should be a sci-fic writer.

When sodium chloride reacts with cyclohexene, the chlorocyclohexane will form.
However, when water reacts with cyclohexene, the hydrocyclohexane will form.
Sodium choride will use to purify cyclohexene because a reverse reaction will not observe and only one product will form.
Inversely, when water will use, a reverse reaction will observe and it has multiple products.