4d Flashcards
1
Q
Alkene functional group
A
C = C
2
Q
Alkene general formula
A
CnH2n
3
Q
Why are alkenes unsaturated
A
More atoms can be added (they contain a double bond)
4
Q
Alkenes with bromine
A
Double bond is broken and Br2 is added.
e.g.
C2H4 + Br2 –>C2H4Br2
5
Q
Test for alkene
A
Bromine water(orange) will turn colourless if it is an alkene. Will stay orange if it is an alkane.