EASY
AS and A Level
IMPORTANT
Earn 100

Describe and draw the shape of an ethene molecule, labelling all bond angles.

Important Questions on Hydrocarbons

EASY
AS and A Level
IMPORTANT
Explain the meaning of the term functional group. Which functional group is present in all alkenes?
EASY
AS and A Level
IMPORTANT
Describe a simple chemical tests to determine whether an unknown hydrocarbon is unsaturated.
EASY
AS and A Level
IMPORTANT
2.80 g of ethene reacts with chlorine, 8.91 g of dichloroethane is formed. (Ar values: H=1.0, C=12.0, Cl=35.5). Calculate the number of moles of ethene that were used.
EASY
AS and A Level
IMPORTANT
2.80 g of ethene reacts with chlorine, 8.91 g of dichloroethane is formed. (Ar values: H=1.0, C=12.0, Cl=35.5). Calculate the number of moles of dichloroethane that were formed.
EASY
AS and A Level
IMPORTANT
2.80 g of ethene reacts with chlorine, 8.91 g of dichloroethane is formed. (Ar values: H=1.0, C=12.0, Cl=35.5). Calculate the percentage yield.
EASY
AS and A Level
IMPORTANT
2.80 g of ethene reacts with chlorine, 8.91 g of dichloroethane is formed. (Ar values: H=1.0, C=12.0, Cl=35.5). Calculate the number of grams of dichloroethane that would have formed if the percentage yield had been 80.0%.
EASY
AS and A Level
IMPORTANT
Give two effects that a hot, concentrated solution of acidified potassium manganate(VII) have on an alkene molecule.
EASY
AS and A Level
IMPORTANT
State how the reaction of alkenes with hot, concentrated acidified potassium manganate(VII) is useful to chemists?