Revision Notes MCQ Bank SAQ Bank Study Cards Courses Teachers Blog
OCR A Level Chemistry A

3.1.4
Qualitative
Analysis

Section 3.1.4 covers qualitative analysis on a test-tube scale: identifying carbonate ions with acid, sulfate ions with barium ions, halide ions with silver ions and ammonia, and ammonium ions with warm sodium hydroxide, together with the order in which the tests are carried out on an unknown (PAG 4).

Exam Paper
Paper 1 & 3
H432/01 and H432/03
Specification Points
3.1.4 (a)
2 learning outcomes
Sub-topics
1 lesson
Revision notes available
Exam Board
OCR
H432 (2015 onwards)

Revision Notes

1 revision note, in the order the specification teaches them.

A white precipitate beside gas bubbling through limewater
1

Tests for Ions

Tests for carbonate, hydrogencarbonate, sulfate, halide and ammonium ions, with ionic equations and the order of tests on an unknown.

Start revising

Summary Map

Every reaction of the topic on one printable page.

Coming soon

The summary map for 3.1.4 Qualitative Analysis is being drawn.

Virtual Lessons

Recorded video lessons that teach the topic step by step.

Coming soon

The Virtual Lessons for 3.1.4 Qualitative Analysis are being recorded.

MCQ Bank

Multiple-choice papers on this topic, marked the moment you submit.

Coming soon

The MCQ papers for 3.1.4 Qualitative Analysis are being written.

Open the MCQ Bank

SAQ Bank

Written, drawn and worked exam practice on this topic.

Coming soon

The exam practice papers for 3.1.4 Qualitative Analysis are being written.

Open the SAQ Bank

Revision Game

Match reagents to products, with your board's reagents and conditions.

Coming soon

The revision game for 3.1.4 Qualitative Analysis is being built.

Study Cards

Pick a deck, then turn each card to check what you remember.

Specification

Every specification point in this topic, in the exam board's own words. Rate how confident you are with each one.

Official OCR documentsSpecification (opens the OCR website in a new tab)Data sheet (opens the OCR website in a new tab)

Self-assessment · 4 points

Sign in to rate how confident you feel about each point. Your ratings are saved to your account, follow you to any device, and appear beside your KASP analytics, kept apart from your marks.

Sign in to rate yourself
0 Confident0 Getting there0 Not yet4 Not rated

3.1.4

  1. a (i) a

    qualitative analysis of ions on a test-tube scale; processes and techniques needed to identify CO32– in an unknown compound, by reaction with H+(aq) forming CO2(g) (see 2.1.4 c)

    Revise
  2. a (i) b

    qualitative analysis of ions on a test-tube scale; processes and techniques needed to identify SO42– in an unknown compound, by precipitation with Ba2+(aq)

    Revise
  3. a (i) c

    qualitative analysis of ions on a test-tube scale; processes and techniques needed to identify Cl–, Br–, I– in an unknown compound (see 3.1.3 g)

    Revise
  4. a (ii)

    qualitative analysis of ions on a test-tube scale; processes and techniques needed to identify NH4+ in an unknown compound, by reaction with warm NaOH(aq) forming NH3

    Revise