Question

Give a simple test to differentiate cyclohexane and cyclohexene.

• A. $B{r}_2/H_{2}O$
• B. Bayer's reagent
• C. Tollen's reagent
• D. Both (a) and (B)

Answer 1

The correct option is D Both (a) and (B)

(Refer to Image 1)

On addition of $B{r}_2/H_{2}O$, cyclohexane will not react but addition of $Br$ & $OH$ takes place on alkene in cyclohexene.

Thus cyclohexene will react with $B{r}_2/H_{2}O$.

(Refer to Image 2)

Similarly in presence of Bayer's reagent, i.e. alkaline $KMn{O}_4$ solution.

Syn addition of multiple bond takes place

(Refer to Image 3)