CE : Section 6 MC P.1
Section 6 Products from Petroleum
CE : Section 6 MC P.1
93-CE
Q.1 & Q.2 refer to the following experiment:
A mixture of methyl propanoate and sulphuric acid was allowed to react by heating under reflux for some time until equilibrium was reached. The resulting mixture M was then transferred to flask Y and heated as shown below:
1.What is the function of the piece of apparatus labelled X?
A.to condense the products in M.
B.to separate the products in M.
C.to prevent the loss of the products in M due to evaporation.
D.to prevent the loss of the reactants in M due to evaporation.
2.The first fraction of the distillate collected in flask Z is mainly
A.methanol.B.propan-1-ol.
C.methanoic acid.D.propanoic acid.
3.Which of the following substances can react with propene?
(1)concentrated sodium hydroxide solution
(2)acidified potassium permanganate solution
(3)ethanol
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
4.When concentrated sulphuric acid is added dropwise to a solution containing urea and methanal in a test tube with shaking, a white solid can be formed. Which of the following statements about this experiment is/are correct?
(1)The reaction involved is condensation polymerization.
(2)Concentrated sulphuric acid acts as an oxidizing agent.
(3)The white solid is a thermoplastic substance.
A.(1) onlyB.(3) only
C.(1) & (2) onlyD.(2) & (3) only
5.A polymer has the following structure:
Its monomer is
A.chloroethene.
B.1,1-dichloroethane.
C.1,2-dichloroethene
D.1,2-dichloroethane.
94-CE
6.Which of the following substances can turn an acidified solution of potassium permanganate colourless?
A.ethaneB.ethanol
C.ethanoic acidD.ethyl ethanoate
7.X is a synthetic polymer. On gentle heating, it softens and chars. On strong heating, it burns with an acidic smell. X is probably
A.polypropene.
B.polystyrene.
C.polyvinyl chloride
D.perspex.
Q.8 & Q.9 refer to the structural formulae of the following three detergents.
8.Which of the above is/are soapless detergent(s)?
A.detergent I only
B.detergent III only
C.detergent I & II only
D.detergent II & III only
9.Which of the following statements concerning these detergents is correct?
A.The hydrocarbon tail of detergent III is hydrophilic.
B.Both detergent I and II form scum with seawater.
C.Detergent III causes more serious pollution problems than detergent I when discharged into rivers.
D.Both detergents II and III are made from fats.
10.A compound has the following structure:
Which of the following statements about this compound are correct?
(1)It can decolorize bromine water.
(2)It can be polymerized.
(3)It can burn in air.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
11.Which of the following substances can be fermented to give an alcoholic drink?
(1) grapes (2) wheat (3) potatoes
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
95-CE
12.Which of the following statements concerning alkenes is INCORRECT?
A.They can decolorize a solution of bromine in 1,1,1-trichloroethane.
B.They can decolorize red litmus solution.
C.They can decolorize acidified potassium permanganate solution.
D.They can be polymerized to form addition polymers.
13.Which of the following diseases is NOT associated with the excessive drinking of alcohol?
A.stomach ulcerB.brain damage
C.sore throatD.liver damage
14.The formula below can be used to represent the structure of some polymers.
(X represents an atom or a group of atoms.)
Which of the following combinations is INCORRECT?
XName of polymer
A.Hpolyethene
B.Clpolyvinyl chloride
C.CH3perspex
D.C6H5polystyrene
15.Which of the following statement concerning urea-methanal is/are correct?
(1)It softens on gentle heating.
(2)It can be used to make ash trays.
(3)It consists of polymer chains with cross-linkages between the chains.
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
96-CE
16.Which of the following materials are suitable for making the base and handle of a frying pan?
BaseHandle
A.aluminiumpolyvinyl chloride
B.copperurea-methanal
C.titaniumpolyvinyl chloride
D.zincurea-methanal
17.Which of the following substances is NOT derived from petroleum?
A.bleachB.ethanol
C.polystyreneD.soapless detergent
18.
When a little detergent is added to drop of water on a piece of woolen cloth as shown above, the drop spreads. Which of the following statements correctly explains this observation?
A.The detergent dissolves readily in water.
B.The detergent has a polar end which is hydrophilic.
C.The detergent can form an emulsion with water.
D.The detergent can reduce the surface tension of water.
19.Which of the following statements concerning the manufacture of ethanol by fermentation is INCORRECT?
A.Wheat can be used as a raw material.
B.Yeast is required in the fermentation process.
C.Carbon dioxide is liberated in the fermentation process.
D.The ethanol produced can be completely extracted by simple distillation.
Q.20 & Q.21 refer to the following experiment.
A reaction mixture containing acidified potassium dichromate solution and ethanol is heated using the set-up shown below:
20.In this experiment, the reaction mixture is undergoing
A.reflux.B.distillation.
C.emulsificationD.fractional distillation.
21.Which of the following statements concerning this experiment is correct?
A.The acidified potassium dichromate solution acts as a catalyst.
B.The reaction mixture gradually becomes brown.
C.Ethanol is reduced during the experiment.
D.Ethanoic acid is formed during the experiment.
Q.22 and Q.23 refer to the following experiment used to study the causes of hardness of water.
A student added some soap solution to four test tubes containing the same volume of different aqueous solutions of the same molarity. He shook the tubes and measured the minimum volume of soap solution needed to form a permanent lather. The results are tabulated below:
Aqueous solution / Minimum volume of soap solution needed to form a permanent lather / cm3Sodium chloride / 0.6
Calcium chloride / 9.3
Potassium chloride / 0.9
Magnesium chloride / 8.5
22.Which of the following apparatus would be most suitable for measuring the volume of soap solution?
A.50 cm3 burette
B.50 cm3 measuring cylinder
C.25 cm3 pipette
D.10 cm3 beaker
23.Which of the following substances is/are responsible for the hardness of water?
(1)sodium chloride
(2)calcium chloride
(3)potassium chloride
(4)magnesium chloride
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (4) only
24.Which of the following statements concerning nylon and urea-methanal is/are correct?
(1)They are formed by condensation polymerization.
(2)They have cross-linkage between polymer chains.
(3)They are nitrogen-containing compounds.
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
25.Which of the following statements concerning propan-1-ol are correct?
(1)Propan-1-ol can be used as a solvent
(2)Propan-1-ol can undergo polymerization
(3)Propan-1-ol can undergo esterification with ethanoic acid in the presence of concentrated sulphuric acid
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
97-CE
26.Which of the following methods can be used to solve the pollution problems associated with the disposal of plastic waste?
(1)recycling of plastics
(2)making biodegradable plastics
(3)burning plastic waste in incinerators with tall chimneys.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
27.Which of the following substances, when mixed, would produce a precipitate?
A.chlorine water and potassium bromide solution.
B.ethyl ethanoate and ethanol
C.iron(III) sulphate solution and aqueous ammonia
D.nitric acid and potassium hydroxide solution
28.The model shown below represents a compound containing 6 hydrogen atoms (white spheres) and 3 carbon atoms (black spheres).
Which of the following statements concerning the compound is INCORRECT?
A.It structural formula is C3H6.
B.It can be prepared by cracking petroleum fractions.
C.It can decolorize bromine in 1,1,1-trichloroethane.
D.It can undergo polymerization.
29.Which of the following compounds CANNOT be produced directly from ethene?
A.carbon dioxideB.ethanol
C.ethyl ethanoateD.1,2-dibromoethane
30.When a glass of wine is left overnight, it becomes sour. Which of the following reactions is responsible for this change?
A.fermentationB.oxidation
C.dehydrationD.esterification
31.Which of the following statements concerning the compound, CH3COOCH2CH3 is correct?
A.It is a food preservative.
B.It has a pleasant smell.
C.Its systematic name is methyl ethanoate.
D.It is an electrolyte.
32.Dilute ammonia solution is used in domestic glass cleaners because
(1)it can saponify grease.
(2)it is non-corrosive.
(3)it contains ammonium ions which can emulsify grease.
Which of above statements is/are correct?
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
33.Which of the following statements about using ethanol as a car fuel is correct?
(1)Ethanol is a cleaner fuel than petrol.
(2)Using ethanol as a car fuel is economical in agricultural countries with sugar cane as the main crop.
(3)A car engine has to be suitably modified when using ethanol as a fuel.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
98-CE
34.Which of the following statements concerning propene is correct?
A.It can be converted by catalytic hydration to an alkanol with molecular formula C3H8O.
B.It can undergo condensation polymerization.
C.It can be manufactured by fractional distillation of crude oil.
D.It can undergo substitution reaction with a solution of bromine in 1,1,1-trichloroethane.
35.A detergent has the following structure:
Which of the following statements concerning the detergent is correct?
A.Its hydrocarbon chain is hydrophilic.
B.It can be manufactured from vegetable oil.
C.It is readily degraded by micro-organisms.
D.It acts as an emulsifier in the cleaning process.
36.Consider the following manufacturing process:
Which of the following graphs (not drawn to scale) can represent the change in relative molecular masses of the substances involved during the manufacturing process?
37.X is a compound containing four carbon atoms. It gives negative results with the following tests.
Test(1)Treating X with sodium hydrogencarbonate solution
(2)Treating X with a solution of bromine in 1,1,1-trichloromethane
(3)Heating X with acidified potassium dichromate solution
The structural formula of X may be
A.CH3CH2CH=CH2
B.CH3CH2CH2CH2OH
C.CH3CH2CH2CO2H
D.CH3CO2CH2CH3
38.Which of the following statements concerning polystyrene is / are correct?
(1)It is a condensation polymer.
(2)It can be remoulded.
(3)It can be used to make packaging material for electrical appliances.
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
39.Which of the following problems are associated with the excessive use of soapless detergents?
(1)They can cause skin allegies.
(2)They form foam when discharged into rivers and lakes.
(3)They form scum when discharged into the sea.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
99-CE
40.Which of the following substances has the lowest boiling point?
A.ethanolB.propan-1-ol
C.propaneD.butane
Directions : Q.41 and 42 refer to the following experiment:
Some concentrated sulphuric acid and pumice stones were added to an alkanol and an alkanoic acid. The mixture was heated under reflux for some time and the following compound was obtained:
41.Which of the following combinations is correct?
AlkanolAlkanoic acid
A.methanolethanoic acid
B.methanolpropanoic acid
C.ethanolethanoic acid
D.ethanolpropanoic acid
42.Which of the following statements concerning the experiment is correct?
A.Concentrated sulphuric acid acts as an oxidizing agent in the reaction.
B.The purpose of using pumice stones is to speed up the reaction.
C.A fractionating column should be used in the experimental set-up.
D.Heating under reflux can prevent the loss of reactants and products.
43.Which of the following substances is a thermoplastic as well as a condensation polymer?
A.nylonB.perspex
C.polyetheneD.urea-methanal
44.Which of the following substances can react with acidified potassium permanganate solution?
(1)ethene
(2)copper(II) sulphate solution
(3)iron(II) sulphate solution
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
45.Plastic X has the following structure:
Which of the following statements concerning X are correct?
(1)The monomer of X is CHCl=CHCl.
(2)X can be used to make electric sockets.
(3)The flue gas produced by the incineration of X can cause the formation of acid rain.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
46.Which of the following statements concerning a soapless detergent are correct?
(1)It can be prepared by heating a cooking oil with sodium hydroxide solution.
(2)It acts as a wetting agent by reducing the surface tension of water.
(3)It acts as an emulsifying agent in the cleaning process.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
00-CE
47.Which of the following pairs of compounds can be distinguished by treating with an acidified potassium dichromate solution?
A.ethane and ethene
B.ethanol and propan-1-ol
C.sodium carbonate and sodium hydrogencarbonate
D.sodium sulphite and sodium sulphate
48.Consider the compounds represented by the two structures below:
Which of the following statements concerning these compounds is correct?
A.Both compounds can turn wet blue litmus paper red.
B.Both compounds have the same colour.
C.Both compounds have the same molecular formula.
D.Both compounds have the same boiling point.
49.A polymer has the following structure:
What is the monomer of this polymer?
A.butaneB.but-1-ene
C.but-2-eneD.2-methylpropene
50.Some potassium carbonate solution is added to a sample of tap water. The mixture then appears cloudy. Which of the following ions is probably present in the sample?
A.NH4+B.Mg2+
C.Br-D.SO42-
51.Which of the following compounds is insoluble in water?
A.methanol
B.methanoic acid
C.methyl methanoate
D.sodium methanoate
52.Which of the following articles should be made from thermosetting plastics?
(1)wall paper
(2)television casing
(3)water bucket
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
53.Which of the following polymers is/are made by condensation polymerization?
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
54.
Some concentrated sulphuric acid was poured into a sink connected to a catchpot made of polyvinyl chloride (PVC). After some time, the catchpot became deformed. Which of the following explanations for the deformation of the catchpot is/are correct?
(1)The heat liberated when the concentrated sulphuric mixed with the water in the catchpot caused PVC to soften.
(2)PVC was decomposed into its monomers by the concentrated sulphuric acid.
(3)PVC was oxidized by the concentrated sulphuric acid.
A.(1) onlyB.(2) only
C.(1) & (3) onlyD.(2) & (3) only
01-CE
55.Which of the following statements concerning uses of plastics is correct?
A.Perspex is used for making ash trays.
B.Polyvinyl chloride is used for making raincoats.
C.Polystyrene is used for making floor tiles.
D.Nylon is used for making packaging materials for electrical appliances.
56.Which of the following processes is NOT involved in the production of ethanol from crude oil?
A.cracking
B.fermentation
C.catalytic hydration
D.fractional distillation
57.Which of the following statements is correct for a soapy detergent but incorrect for a soapless detergent?
A.Its structure consists of a hydrophilic part and a hydrophobic part.
B.It forms lather when shaken with distilled water.
C.It can be made by reacting a vegetable oil with an alkali.
D.It acts as an emulsifier in the cleaning process.
58.Which of the following statements concerning ethanol and butan-2-ol is INCORRECT?
A.Both compounds can dissolve iodine.
B.Both compounds can be represented by the same general formula.
C.The boiling point of ethanol is higher than that of butan-2-ol.
D.Each compound can be obtained by catalytic hydration of the corresponding alkene.
59.The reaction involved in the preparation of ethanoic acid from ethanol is
A.an additionB.a condensation
C.a redoxD.a dehydration
02-CE
60.The monomer of polymer X is chloroethane. Which of the following statements concerning X is correct?
A.X is a condensation polymer.
B.X is a thermosetting plastic.
C.X is used in making drainage pipes.
D.The repeating unit of X is as follows:
61.In which of the following processes will carbon dioxide be produced?
(1)the fermentation of glucose solution
(2)the biodegradable of animal faeces
(3)the treatment of car exhaust in a catalytic converter
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
62.Both ethene and ethyne are gaseous hydrocarbons. Their structures are shown below:
Which of the following statements concerning ethene and ethyne are correct?
(1)Both are unsaturated hydrocarbons
(2)Both are insoluble in water.
(3)Ethyne burns with a more sooty flame than ethene.
A.(1) & (2) onlyB.(1) & (3) only
C.(2) & (3) onlyD.(1), (2) & (3)
CE : Section 6 MC P.1
Direction : Each question below consists of two statements. Decide whether each of the two statements is true or false; if both are true, then decide whether or not the second statement is a correct explanation of the first statement. Then select one option from A to D according to the following table :
A. Both statements are true and the 2nd statement is a correct explanation of the 1st statement.B. Both statements are true but the 2nd statement is NOT a correct explanation of the 1st statement.
C. Only one statement is true while the other is false.
D. Both statement are false.
1st statement2nd statement
63. / In the preparation of soap, sodium chloride is added after the reaction between oil and sodium hydroxide has been completed. / Sodium chloride can increase the solubility of soap.64. / Nylon softens on heating. / Nylon is a condensation polymer`
65. / Newspapers gradually turn yellow in air. / Sulphur-containing pollutants are present in air.
66. / The ethanol content of beer is less than that of red wine. / Beer is made by fermentation of barley while red wine is made by fermentation of grapes.
67. / Wash bottles used in the chemical laboratory are commonly made of polyethene. / Polyethene is an addition polymer.
68. / Local tap water produces a scum with soap. / Water containing calcium ions can form an insoluble compound with soap.
69. / Urea-methanal is used to make electric plugs / Urea-methanal is a condensation polymer.
70. / The reaction of ethanoic acid with ethanol is a neutralization. / Water is one of the products formed in the reaction of ethanoic acid with ethanol.
71. / The basicity of methanoic acid is different from that of ethanoic acid. / The number of hydrogen atoms in a molecule of methanoic acid is different from that in a molecule of ethanoic acid.
Section 6
1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 100+ / B / A / B / A / C / B / C / D / C / D
10+ / D / B / C / C / D / B / A / D / D / A
20+ / D / A / D / C / B / A / C / A / C / B
30+ / B / A / D / A / D / D / D / D / A / C
40+ / B / D / A / C / B / C / D / C / C / B
50+ / C / B / A / A / B / B / C / C / C / C
60+ / D / D / C / B / C / B / B / C / B / C
70+ / C