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WorksheetsALKOHOL & KEISOMERAN
Total questions: 11
Worksheet time: 7mins
Diagram represents the structural formula of a carbon compound.
Which of the following alcohol reacts with propanoic acid to produce the above compound?
CH3OH
CH3CH2OH
CH3CH2CH2OH
CH3CH2CH2CH2OH
Ethanol reacts with ethanoic acid to form ethyl ethanoate.
C2H5OH + CH3COOH → CH3COOC2H5 + H2O
What is the formula of the ester formed when methanol reacts with butanoic acid, (C3H7COOH)?
C2H5COOC2H5
C3H7COOC2H5
C3H7COOCH3
CH3COOC3H7
Diagram shows oxidation process of ethanol.
What can be observed after being heated for 5 minutes?
No colour change
All of the ethanol vapourises and the flask becomes dry
The colour of mixture changes from orange to green
The mixture in the flask separated into two layers. The upper layer is yellow while the lower layer is green
When liquid R is refluxed with propanoic acid and a few drops of concentrated sulphuric acid, a sweet smelling liquid is formed. Liquid R may be
propanol
ethanoic acid
hexane
ethyl propanoate
Which formulas represent butane or its isomer?
(1) CH3(CH2)2CH3
(2) CH3CH(CH3)CH3
(3) (CH3)3CH
1 and 2 only
1 and 3 only
2 and 3 only
1 , 2 and 3
Which structural formula represents an isomer?
A structural isomer of pentane is?
2-methyl butane
2,2-dimethyl octane
1-methyl propane
1-methyl pentane
Structural isomers have
same molecular formula
different physical and chemical properties.
Have the same number of elements and atoms
all of the above
Compounds that are composed of the same number and type of atoms but have them arranged in different ways are ___________.
isomers
isotopes
polymers
alkanes
Molecules of 1-bromopropane and 2-bromopropane differ in
molecular formula
structural formula
number of carbon atoms per molecule
number of bromine atoms per molecule
Which structural formula represents a molecule that is not an isomer of pentane?
