| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.sl.TZ1.28 |
| Level | SL | Paper | 1 | Time zone | TZ1 |
| Command term | Deduce | Question number | 28 | Adapted from | N/A |
Question
When bromine water is shaken with a liquid organic compound, it is rapidly decolourized. What can be determined from this test?
A. The compound is an alcohol.
B. The compound is an alkane.
C. The compound is an alkene.
D. The compound is an iodoalkane.
Markscheme
C
Examiners report
Though it produced a significant number of blank responses, with a difficulty index of 57%, the majority of the candidates answered this question correctly and with a discrimination index of 0.59 it was one of the best discriminators on the paper.
Syllabus sections
Show 192 related questions
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- 15M.2.hl.TZ2.10g: Deduce the equation for the complete combustion of compound C.
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- 15M.1.sl.TZ1.26: Which compound could be X in the two-stage reaction...
- 15M.1.sl.TZ2.28: Which statements are correct for the reaction of ethene with bromine in the absence of...
- 15M.2.sl.TZ1.2a: State the equation for the reaction between methane and bromine to form bromomethane.
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- 15M.2.sl.TZ2.4b: Ethane, a member of the homologous series of alkanes, can react with bromine. Explain the...
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- 14M.2.sl.TZ2.6g.i: State the conditions required for this reaction to occur.
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- 13N.2.sl.TZ0.2c: Traces of butane, \({{\text{C}}_{\text{4}}}{{\text{H}}_{{\text{10}}}}\), are also found...
- 13N.1.sl.TZ0.29: Which organic product forms in the following...
- 13N.2.sl.TZ0.2a: Complete the overall equation for this reaction by stating the...
- 13N.2.sl.TZ0.2b: State the type of mechanism by which this reaction occurs.
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- 13M.1.sl.TZ1.27: Which steps are involved in the free-radical mechanism of the bromination of ethane in the...
- 13M.1.sl.TZ1.28: Which substance can be polymerized to produce the polymer below? A. But-1-ene B. ...
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- 13M.2.sl.TZ2.7c.iii:
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- 09N.2.sl.TZ0.4b: Both \({{\text{C}}_{\text{5}}}{{\text{H}}_{{\text{12}}}}\) and...
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- 09N.2.sl.TZ0.7b.iii: A third isomer is oxidized in one step. Draw the structural formula of the organic product...
- 09N.2.sl.TZ0.7b.v: Identify the isomer which resists oxidation by acidified potassium dichromate(VI).
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- 10M.2.sl.TZ1.6c: (i) Below are four structural isomers of alcohols with molecular formula...
- 10M.3.sl.TZ1.G2b: (i) bromine. (ii) hydrogen bromide.
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- 11M.2.sl.TZ2.6c.iii: Other than polymerization, state one reaction of alkenes which is of economic importance.
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- 12M.2.sl.TZ2.7b: (i) Explain why alkanes have low reactivity. (ii) Outline the meaning of the term...
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- 12M.3.sl.TZ2.F2b: Describe how an oil can be converted into a fat.
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- 11N.1.hl.TZ0.36: Which compound is the major product of the reaction when 1-bromobutane is heated with...
- 11N.1.sl.TZ0.28: From which monomer is this polymer made?
- 11N.1.sl.TZ0.25: Which equation represents the initiation reaction when methane reacts with chlorine in the...
- 11N.1.sl.TZ0.29: What is the organic product of the reaction between 2-chlorobutane and sodium hydroxide...
- 11N.2.sl.TZ0.4b: Deduce the balanced chemical equation for the complete combustion of butan-1-ol.
