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Course: IAL Edexcel Modular (Chemistry)
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IAL Edexcel Modular (Chemistry)

Unit 1. Structure, Bonding and Introduction to Organic Chemistry

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Unit 2. Energetics, Group Chemistry, Halogenoalkanes and Alcohols

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Quiz

6.2 Advanced Inorganic & Organic – Check yourself

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Advanced Inorganic & Organic IAL Modular Chemistry check yourself quiz: free practice for IAL Edexcel Modular (chemistry). Work through this Advanced Inorganic & Organic IAL Modular Chemistry check yourself quiz and get instant feedback on every answer. If you get stuck, review the 6.2 Advanced Inorganic & Organic — Notes — IAL Chemistry Notes lesson. More practice: IAL Edexcel Modular (chemistry) — all units. Syllabus: Pearson Edexcel International A Levels.

1.
Why is dilute sulfuric acid, not hydrochloric acid, used in manganate(VII) titrations?
HCl is too weak
Cl- would be oxidised by MnO4-
HCl reacts with Fe2+
H2SO4 acts as indicator
2.
How many moles of Fe2+ react with 0.002 mol MnO4-?
0.0004
0.002
0.005
0.010
3.
When is starch added in an iodine-thiosulfate titration?
When the solution is pale yellow
At the start
After the end point
Never
4.
Which reagent converts 2-hydroxybenzoic acid into aspirin in the usual preparation?
Ethanol
Ethanoyl chloride only
Ethanoic acid
Ethanoic anhydride
5.
A sample of aspirin melts over 125-131 °C. This shows it is:
Pure
Impure
A different compound entirely
Decomposed
6.
Adding NaOH(aq) to a solution gives an orange-brown precipitate. The ion present is:
Fe3+
Fe2+
Cu2+
Cr3+
7.
Which statement best describes Melting point test?
A purity check: a pure solid melts sharply at its literature value; impurities lower and broaden the range.
Forms a blue-black complex with iodine; added near the end point of a thiosulfate titration.
Describes a titrant whose own colour change shows the end point, e.g. purple MnO4- becoming colourless Mn2+.
Purification of a solid by dissolving it in minimum hot solvent, cooling to crystallise, filtering and drying.
8.
Which statement best describes Iodometric titration?
A central metal ion surrounded by ligands bonded by dative covalent bonds.
A titration in which the reaction between titrant and analyte involves electron transfer.
A method in which an oxidising agent liberates iodine from excess I- and the iodine is titrated with thiosulfate.
Tests that identify which ions or functional groups are present rather than how much.
9.
Which statement best describes Qualitative analysis?
Tests that identify which ions or functional groups are present rather than how much.
A titration in which the reaction between titrant and analyte involves electron transfer.
Describes a titrant whose own colour change shows the end point, e.g. purple MnO4- becoming colourless Mn2+.
Formation of an ester from an alcohol/phenol and a carboxylic acid or acid derivative, e.g. an acid anhydride.
10.
Which statement best describes Recrystallisation?
Describes a titrant whose own colour change shows the end point, e.g. purple MnO4- becoming colourless Mn2+.
Tests that identify which ions or functional groups are present rather than how much.
Purification of a solid by dissolving it in minimum hot solvent, cooling to crystallise, filtering and drying.
A method in which an oxidising agent liberates iodine from excess I- and the iodine is titrated with thiosulfate.
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