WorksheetsPretest for Organic Chemistry (SUEC)
Total questions: 20
Worksheet time: 40mins
The IUPAC name of the compound in the figure is?
3-ethyl-3,4,6-trimethyldecane
3,4,6-trimethyl-3-ethyldecane
4,6,7-trimethyl-7-ethyldecane
7-ethyl-4,6,7-trimethyldecane
The IUPAC name for the organic compound in the figure is?
3-methylpent-4-ene
3-methylpent-1-ene
3-ethylbut-1-ene
2-ethylbut-3-ene
Which of the following compounds does not have the empirical formula CH2O?
Ethanol
Glucose
Ethanoic acid
Methyl methanoate
How many isomers are there in C3H6Cl2?
6
5
4
3
Which of the following alkanes possess only two carbon chain isomers?
Propane
Butane
Pentane
Hexane
Which of the following statements concerning the homologues are correct?
I, II, V
I, III, V
II, III, IV
III, IV, V
When compound V is added to a solution of bromine in tetrachloromethane, bromine is immediately decolourised. Compound V could be?
cyclohexane
pentane
pentene
benzene
If one mole of each of the following organic compounds is burnt in sufficient oxygen under the same condition, the one which consumes the most oxygen will be?
Propene
Propane
Propyne
Propanol
Which of the following descriptions concerning the two alkenes CH3CH2CH=CH2 and CH3CH=CHCH3 is incorrect?
Both may be polymerised
Both react with hydrogen to form butane
Both react with bromine to give 1,4-dibromobutane
Both may be oxidised by alkaline potassium permanganate solution to a diol
Which of the following is the best method for preparing purer monochloroethane?
Ethane reacts with chlorine.
Ethene and hydrogen chloride undergo addition reaction.
Ethyne and hydrogen chloride undergo addition reaction.
Ethene and hydrogen undergo addition reaction and then react with chlorine.
Ethene and polyethene have similar?
I, III, V
I, II
I, IV
I, II, III
Which of the following pairs of reagent cannot be used to prepare CH3CH2Cl?
CH2=CHCl + H2
CH2=CH2 + HCl
CH3CH2OH + Cl2
CH3CH2OH + HCl
Which of the following compounds hydrolyze to form 2-butanol?
I, III
II, III
II, IV
III, IV
Which of the following compounds is most soluble in water?
CH3(CH2)2COCH3
CH3CH2OH
CH3(CH2)5OH
CH3CH2Cl
When 1-propanol is heated with excess concentrated sulphuric acid at 180oC, the major organic product is?
CH2=C=CH2
CH3CH=CH2
CH3CH2CH=CHCH2CH3
CH2=CHCH2
Which of the following esters is formed when butanoic acid reacts with methanol?
CH3CH2COOCH3
HCOOCH2CH2CH3
CH3CH2COOCH2CH3
CH3CH2CH2COOCH3
Which of the following statements about 1-propanol are correct?
I, III
II, III
II, IV
III, IV
The correct sequence of the boiling points of the following compounds in ascending order is ?
IV > II > III > I
I > IV > II > III
IV > I > II > III
III > I > II > iv
The substance which can react with sodium to produce hydrogen gas and decolourise bromine water and acidified potassium permanganate solution is?
CH3CH2COOCH2CH3
CH3CH=CHCOOCH3
CH3CHOHCOOH
CH2=CHCOOH
When burning completely in oxygen, one mole of an organic compound consumes 112 dm3 (at standard temperature and pressure) of pure oxygen and produces 4 moles of carbon dioxide and 4 moles of water. The molecular formula of this compound is ?
C4H4O5
C4H8O2
C2H6O
C4H8
