Question

Give a test to distinguish between pent-ene and n-pentane

Answer 1

Hi Bro

It is simple

Bromine can be used to test between two because Br is a test for unsaturation whose colour disappears on reacting with alkenes or alkynes.

hope it helps

Answer 2

Use Markownikoff's Rule of Addition of Hydrogen Bromide.

Pentene will react as it has double bond but pentane doesn't and it won't.