WorksheetsCarbon Compounds II
Total questions: 20
Worksheet time: 15mins
Which of the following pairs of compounds are isomers?
Butane and butene
2,3-dimethylpentane and 3-methylpentane
2-methylpentane and 2,2-dimethylbutane
2-methylpropane and 2-methylpropene
Which of the following is the functional group for alcohol?
C=C
-OH
-COOH
-COO-
Which of the following is the general formula for alcohol?
CnH2nO
CnH2n+1OH
CnH2n+1COOH
CnH2n
What is compound Z?
Propene
Propane
Propanoic acid
Propyl propanoate
Which of the following alcohols does not undergo a dehydration reaction?
CH3OH
C2H5OH
C3H7OH
C4H9OH
Compound X reacts with methanoic acid to produce a sweet smell compound. What is compound X?
C2H5OH
CH3COOH
C2H5COOH
CH3COOCH3
Which one is carboxylic acid?
Which one is NOT a property of ethanoic acid?
Has vinegar smell
Soluble in organic solvent
Insoluble in water
Reacts with a reactive metal
What are the reactants used to prepare this ester?
Methanol and ethanoic acid
Ethanol and methanoic acid
Methanol and methanoic acid
Ethanol and ethanoic acid
Ethanoic acid + methanol --> Q + H2O
Q is
CH3COOCH3
C2H5COOCH3
CH3COOC2H5
C3H7COOH
Which process is used to convert vegetable oil to margarine?
Oxidation
Esterification
Hydrogenation
Hydration
What is the difference between fats and oils?
Fats are esters, oils are carboxylic acid
Fats are solid, oil are liquids
Fats have lower melting point than oil
Fats found in plants, oils found in animals
Which one is unsaturated fatty acid?
C15H31COOH
C16H33COOH
C17H31COOH
C18H37COOH
Which substance coagulates latex?
NaOH
NH3
NaCl
HCl
Which of the following statements is TRUE about vulcanised rubber compare to unvulcanised rubber?
Less elastic
Harder and stronger
Easier to oxidise
Easier to melt
Vulcanisation is a process to add X into rubber polymers.
X is
Oxygen
Hydrogen
Sulphur
Nitrogen
Propanoic acid reacts with calcium carbonate to produce gas X.
Gas X can be tested with
Bromine water
Lighted wooden splinter
Glowing wooden splinter
Lime water
P and Q react to form
ethyl ethanoate
ethyl propanoate
propyl ethanoate
propyl propanoate
Ethanol can convert to ethanoic acid by using
nickel , 180oC
acidified potassium manganate(VII) solution, reflux
acidified potassium dichromate(VI) solution, reflux
concentrated sulphuric acid, reflux
Monomer of rubber is
Isoprene
Neoprene
Amino acid
Glucose
