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4.2 Identifying the products of chemical reactions

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Question 18

A laboratory information system contains four records from tests on solutions. Each test was carried out on a separate portion of a solution.

RecordResult after adding sodium hydroxide solutionResult after acidifying with dilute nitric acid and adding silver nitrate solutionResult after acidifying with dilute hydrochloric acid and adding barium chloride solution
WGreen precipitateCream precipitateNo precipitate
XGreen precipitateWhite precipitateNo precipitate
YOrange-brown precipitateCream precipitateWhite precipitate
ZOrange-brown precipitateCream precipitateNo precipitate

One of the records is for an iron(III) bromide solution.

Which record is for the iron(III) bromide solution?

[1]
A

Record X

B

Record Z

C

Record W

D

Record Y

Markscheme

4.2 Identifying the products of chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Identifying the products of chemical reactions

107 exam-style questions on OCR GCSE Chemistry 4.2 Identifying the products of chemical reactions, covering 4.2.1 Tests to identify gases, 4.2.2 Tests for aqueous ions and flame tests, and 4.2.3 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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