CAPE Chemistry Unit 2 · 2014 · Paper 1
44 multiple-choice items from this paper. Open one to see it in full, then practise it on Quelpr and get it marked against the mark scheme.
- Q11 mark · multiple choiceCombustion analysis of
0.18\text{ g}of an organic compound produces0.396\text{ g}of carbon dioxide and0.216\text{ g}of water. The empirical formula of the compound, given that it contains carbon, hydrogen and… - Q21 mark · multiple choiceWhich of the following compounds show optical activity?
I.
\text{CH}_3\text{CH(OH) COOH}II.\text{HOCH} = \text{CHOH}III.\text{CH}_3\text{CH (Cl) CH}_3IV.\text{HC(Br) I Cl} - Q31 mark · multiple choiceVolatility of organic compounds depends on the strength of the intermolecular forces present. Which compound below is the MOST volatile?
- Q41 mark · multiple choiceThe ideal detector used in gas chromatography (GC) has specific characteristics. Which of the following characteristics are for a GC detector? I. Adequate sensitivity II. Good stability III. Short response time IV.…
- Q51 mark · multiple choiceWhich of the following statements about polyunsaturated oils (triglycerides) is FALSE?
- Q61 mark · multiple choiceWhich of the following alcohols will NOT be oxidized by acidified potassium dichromate(VI)?
- Q71 mark · multiple choiceIn the reaction between ethene and bromine, which statements about the reaction mechanism may be true? I. A carbocation forms in the rate determining step. II. A dative covalent bond forms between the bromide ion and…
- Q81 mark · multiple choiceWhich of the following statements are correct concerning Compound J? I. It will decolourize aqueous bromine. II. It will decolourize cold, acidified potassium permanganate. III. It will produce a silver mirror with…
- Q91 mark · multiple choiceItem 9 refers to the compounds, P, Q, R and S, whose structures are given below.
P:
\text{CH}_3(\text{CH}_2)_4\text{CH}_2\text{OH}Q:\text{CH}_3(\text{CH}_2)_3\text{CH}_2\text{COOH}R:… - Q101 mark · multiple choiceWhich of the following compounds does NOT give a white precipitate when shaken with cold ethanolic silver nitrate?
- Q111 mark · multiple choiceThe complete reaction of phenol with aqueous bromine is characterized by a
- Q121 mark · multiple choiceWhich of the following organic compounds would release a proton MOST readily?
- Q131 mark · multiple choiceItem 13 refers to each of the three sets of structures shown below which are to be labelled as showing the conjugative effect or the positive inductive effect or the negative inductive effect. Which of the following…
- Q141 mark · multiple choiceWhich of the following statements is NOT true of addition polymerization?
- Q151 mark · multiple choiceThe product formed by the polymerization of propene,
\text{C}_3\text{H}_6, may be used as a - Q161 mark · multiple choiceWhich of the following inaccuracies may be eliminated by calibrating a measuring instrument?
- Q171 mark · multiple choiceThe concentration of an ammonia solution is determined by titrating
25.0\text{ cm}^3against0.2\text{ mol dm}^{-3}sulfuric acid to give an end point of27.5\text{ cm}^3. The concentration of ammonia (in… - Q181 mark · multiple choiceIn gravimetric analysis of a substance by precipitation, which of the following outcomes would be FALSE for the precipitate formed?
- Q191 mark · multiple choiceA
300\text{-mg}solid sample containing chloride is dissolved in water. The chloride is then precipitated as\text{AgCl}by the addition of silver nitrate to the solution of the sample. The precipitate is collected,… - Q201 mark · multiple choiceIn an electronic transition in the UV/visible region of the spectrum, a wavelength of
450\text{ nm}is absorbed. Planck constant (h) =6.63 \times 10^{-34}\text{ J s}Velocity of light (c) =… - Q211 mark · multiple choiceThe structural features which cause absorption in the UV/VIS region of the electromagnetic spectrum are known as
- Q221 mark · multiple choiceWhich of the following alkenes has the wavelength of maximum absorption,
\lambda_{\text{max}}? - Q231 mark · multiple choiceAn unknown organic compound with molecular mass of
44\text{ g}is analysed using infrared. The bonds are found at1700\text{ cm}^{-1}and2800\text{ cm}^{-1}. The compound is MOST likely - Q241 mark · multiple choiceWhich of the following analytical techniques is considered MOST specific for identification purposes?
- Q261 mark · multiple choiceWhich of the following media is NOT a visualising agent in chromatography?
- Q271 mark · multiple choiceA student carries out an experiment using thin-layer chromatography separation on silica gel and obtains the following results: Compound | Distance Travelled (cm) Compound A | 1.5 Compound B | 9.1 Solvent | 12.5 The…
- Q281 mark · multiple choiceWhich of the following mixtures CANNOT be completely separated by fractional distillation?
- Q291 mark · multiple choiceWhich of the following statements about the partition coefficient may be true? I. It does not vary with temperature. II. The solute has to be in the same molecular state in both solvents for it to be a constant. III.…
- Q301 mark · multiple choiceFor which of the following processes is the apparatus NOT suitable?
- Q311 mark · multiple choiceAlong with silicon dioxide, which of the following compounds constitutes the main impurities of bauxite?
- Q321 mark · multiple choiceItem 32 refers to the following fractions of crude oil. I. Diesel II. Petrol III. Refinery gas IV. Kerosene The correct order in terms of increasing boiling point is
- Q331 mark · multiple choiceThe essential conditions for the Haber process are
- Q341 mark · multiple choiceItem 34 refers to the manufacture of chlorine by the electrolysis of brine using the diaphragm cell. The anode is made up of
- Q351 mark · multiple choiceFor which TWO of the following industrial products is chlorine MOST widely used during their manufacture? I. Solvents II. Sodium chloride III. Polyvinylchloride IV. Chlorofluorocarbons
- Q361 mark · multiple choiceIn the production of sulfuric acid by the Contact process, the following exothermic reaction takes place:
2\text{SO}_2(\text{g}) + \text{O}_2(\text{g}) \xrightarrow{\text{V}_2\text{O}_5,\, 420\,^\circ\text{C},\,… - Q371 mark · multiple choiceCompounds of sulfur such as sulfites are used as food additives because they
- Q381 mark · multiple choiceIn which of the following industries is sulfuric acid used in the development of their products? I. Fertilizer II. Paint III. Fibre IV. Detergent
- Q391 mark · multiple choiceWhich of the following ions are significant contributors to eutrophication?
I.
\text{PO}_4^{3-}II.\text{NO}_3^-III.\text{SO}_4^{2-}IV.\text{Cl}^- - Q401 mark · multiple choiceItems 40-41 refer to the following information.
Aerosol propellants such as Freon-11,
\text{CCl}_3\text{F}, are of major concern because of their photochemical reaction with ozone,\text{O}_3. Ultraviolet radiation… - Q411 mark · multiple choiceA balanced equation for the photochemical decomposition of Freon-11 is
- Q421 mark · multiple choiceChlorofluorocarbons undergo homolytic fission by being exposed to ultraviolet light in the stratosphere.
Which radical could result from
\text{CH}_2\text{FCF}_2\text{Cl}? - Q431 mark · multiple choiceWhich of the following compounds is NOT a primary pollutant?
- Q441 mark · multiple choiceWhich of the following resources are normally associated with the formation of photochemical smog? I. Nitrogen oxides II. Sunlight III. Volatile organic resources
- Q451 mark · multiple choiceWhich of the following plastics is biodegradable?