Subsection 12.5. Identification of ions and gases for Chemistry, O Level - revisedeck

12.5. Identification of ions and gases

A subsection of Chemistry, 5070, through 12. Experimental techniques and chemical analysis

Listing 10 of 174 questions

A metal reacts with dilute hydrochloric acid to produce a gas. What is used to identify this gas?

5070_s10_qp_11

MCQ

2010

Paper 1, Variant 1

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The diagram shows a simple laboratory apparatus for the preparation and collection of a dry gas. anhydrous calcium chloride What is the gas?

5070_s10_qp_12

MCQ

2010

Paper 1, Variant 2

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Which is an anion that is present in the solution formed when an excess of dilute hydrochloric acid is added to calcium carbonate?

5070_s10_qp_12

MCQ

2010

Paper 1, Variant 2

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A metal reacts with dilute hydrochloric acid to produce a gas. What is used to identify this gas?

5070_s10_qp_12

MCQ

2010

Paper 1, Variant 2

View

The diagrams show an experiment with aqueous ammonium chloride. solution X mixture aqueous ammonium chloride poured in heat moist litmus paper A gas, Y, is produced and the litmus paper changes colour. What are solution X and gas Y?

5070_s11_qp_11

MCQ

2011

Paper 1, Variant 1

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A student tested a solution by adding aqueous sodium hydroxide. A precipitate was not seen because the reagent was added too quickly. What could not have been present in the solution?

5070_s11_qp_11

MCQ

2011

Paper 1, Variant 1

View

A solution of fertiliser was tested as shown...

5070_s11_qp_11

MCQ

2011

Paper 1, Variant 1

View

The diagrams show an experiment with aqueous ammonium chloride. solution X mixture aqueous ammonium chloride poured in heat moist litmus paper A gas, Y, is produced and the litmus paper changes colour. What are solution X and gas Y?

5070_s11_qp_12

MCQ

2011

Paper 1, Variant 2

View

A student tested a solution by adding aqueous sodium hydroxide. A precipitate was not seen because the reagent was added too quickly. What could not have been present in the solution?

5070_s11_qp_12

MCQ

2011

Paper 1, Variant 2

View

A solution of fertiliser was tested as shown...

5070_s11_qp_12

MCQ

2011

Paper 1, Variant 2

View

Questions Discovered

174