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Edexcel A-Level Chemistry A2 6 P16 Tests for Organic Functional Groups Questions

The two direct questions form one calculation chain: complete the titre table, average concordant readings, then use Ag+ and BaCl2 stoichiometry to find x.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • Complete titre tables and calculate a mean titre from concordant readings to 2 d.p.
  • Use mean titre, Ag+ moles and BaCl2 stoichiometry to determine hydrated-salt x.

Edexcel A-Level Chemistry A2 6 P16 Tests for Organic Functional Groups Questions question 1

[Maximum number: 3]

Which test can be used to distinguish between each of the pairs of compounds shown?

Question (a)

(a)
Figure for Question (a) — Edexcel A-Level Chemistry A2

and

Figure for Question (a) — Edexcel A-Level Chemistry A2

□ A warm each compound with Tollens' reagent
□ B add sodium carbonate solution to each compound
□ C warm each compound with iodine under alkaline conditions
□ D add phosphorus(V) chloride to each compound

[ 1 ]

Question (b)

(b)
Figure for Question (b) — Edexcel A-Level Chemistry A2

and

Figure for Question (b) — Edexcel A-Level Chemistry A2

□ A warm each compound with Tollens' reagent
□ B add sodium carbonate solution to each compound
□ C warm each compound with iodine under alkaline conditions
□ D add phosphorus(V) chloride to each compound

[ 1 ]

Question (c)

(c)
Figure for Question (c) — Edexcel A-Level Chemistry A2

and

Figure for Question (c) — Edexcel A-Level Chemistry A2

□ A warm each compound with Tollens' reagent
□ B add sodium carbonate solution to each compound
□ C warm each compound with iodine under alkaline conditions
□ D add phosphorus(V) chloride to each compound

[ 1 ]
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