Question

In the bromine test, the presence of an alkene is indicated by a color change of

a) From yellow to red-brown
b) From blue to green
c) From clear to cloudy
d) From purple to orange

Answer 1

In the bromine test, the presence of an alkene is indicated by a color change from red to orange.

Step-by-step explanation:

In the bromine test, the presence of an alkene is indicated by a color change from red to orange. Bromine is a brownish-orange color, but when it reacts with an alkene, the orange color disappears. This happens because the alkene reacts with the bromine, causing the color change.