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Tardigrade
Question
Chemistry
Which reagent used to test unsaturation of alkenes?
Q. Which reagent used to test unsaturation of alkenes?
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NTA Abhyas
NTA Abhyas 2022
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A
conc.
H
2
S
O
4
B
Solution of
B
r
2
in
CC
l
4
C
Ammonical
C
u
2
C
l
2
D
Ammonical
A
g
N
O
3
Solution:
Solution of bromine in carbon tetrachloride is used to test for unsaturation of alkene. The reddish brown colour of bromine disappears due to the formation of colourless dibromo ethane
(
C
2
H
4
B
r
2
)
.