WorksheetsALKANES & ALKENES
Total questions: 15
Worksheet time: 8mins
What is the IUPAC name of the compound above?
2,2-methyl-4-methylpentane
4,4-dimethyl-2-methylpentane
2,2-dimethyl-4-methylpentane
2,2,4-trimethylpentane
3,4-dimetyhlhexane has the following structure
Which of the following could contain a triple bond (2 pi bonds)?
C4H10
C4H8
C4H6
C6H6
2,2-dimethyl propane has the same number of carbons as
propane
butane
pentane
hexane
Alkanes and alkenes molecules are held together by
weak covalent bond
weak London forces of attraction
strong covalent bonds
both covalent and London forces
Which statement is correct regarding the amount of carbon dioxide and water produced when 1 mole of butane and 1 mole of butene burn in excess oxygen?
the amount of carbon dioxide produced by butene is less than butane
the amount of carbon dioxide produced by butene is more than butane
the amount of water produced by butene is less than butane
the amount of water produced by butene is more than butane
What are the products formed during the incomplete combustion of alkanes or alkenes ?
carbon and oxygen
carbon dioxide and water
carbon, carbon monoxide and water
carbon, carbon dioxide and water
Ethane reacts with bromine under suitable condition.
Which is the product during the initiation step?
bromine ion
ethyl radical
bromine radical
hydrogen radical
Methane reacts with chlorine in substitution reaction. Which of these is an essential condition?
An acid catalyst
A low temperature
UV light
A low pressure
Alkenes undergo all the reactions below except
combustion
substitution
addition
polymerisation
1 mole of ethene reacts with 0.5 mole of water according to the equation shown above. The percentage yield of the ethanol produced is 50%. What is the mass of ethanol produced? (RAM C=12, O=16, H=1)
14g
9g
23
11.5g
What is the condition for hydration of butene ?
phosphoric acid, 60 atm, 300 0C
Nickel or platinum, 180 oC
1000atm, 200 oC
room temperature
Which of the following is the monomer for this polymer ?
ethene
ethane
propane
propene
An organic molecule W contains 3 carbon atoms. It requires 4.5 molecules of oxygen forncomplete combustion. What could W be?
propane
propene
propyne
propanal
In polymer Z every carbon atom in the polymer chain is bonded to one hydrogen atom and one methyl group.
Which alkene could be polymerised to make polymer Z?
but-1-ene
but-2-ene
methylpropene
propene
