When bromine is added to ethene at room temperature, the compound formed is
1,1 - dibromoethane
1,2 - dibromoethene
1,1 - dibromoethene
1,2 - dibromoethane
Correct answer is D
Ethene is an alkene, meaning it has a carbon to carbon double bond. When Bromine is added, an addition reaction occurs forming 1,2 dibromoethane.
C2H4 + Br2 -> C2H4Br2
The following substances are examples of addition polymer except
nylon
perspex
polyethene
polychloroethene
Correct answer is A
Every option, except nylon (which is a condensation polymer), is an addition polymer.
Crystallization
Chromatography
Filtration
Sublimation
Correct answer is B
No explanation has been provided for this answer.
Which of the following compounds would react with ethanoic acid to give a sweet smelling liquid?
Alkane
Alkanol
Alkanal
Alkyne
Correct answer is B
No explanation has been provided for this answer.
Which of the following compounds determines the octane rating of petrol?
1,2,3 - trimethlpentane
2,3,5 - trimethyloctane
2,3,5 - trimethylpentane
2,2,4 - trimethylpentane
Correct answer is D
No explanation has been provided for this answer.