Experimental Techniques
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Apparatus for measurement
SubtopicApparatus for measurement under Experimental Techniques for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Which unit would be used when expressing the rate of a reaction where a gas is produced?
A.B.C.D. - 2.
Which piece of apparatus is best for measuring the volume of a liquid to the nearest ?
A.Beaker
B.Measuring cylinder
C.Burette
D.Conical flask
- 3.
When taking a reading from a burette, the student should read the value to how many decimal places typically?
A.B.or
C.D.
Download the worksheet for Experimental Techniques - Apparatus for measurement to practice offline. It includes additional chapter-level practice questions.
Chromatography
SubtopicChromatography under Experimental Techniques for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
What is the main objective of performing chromatography on a complex mixture like plant pigments?
A.To find the total mass of the plant
B.To separate and identify the individual pigments
C.To make the pigments change color
D.To produce more pigments
- 2.
Which term describes the distribution of a solute between the stationary phase and the mobile phase?
A.Partitioning
B.Distillation
C.Filtration
D.Evaporation
- 3.
In Thin Layer Chromatography (TLC), what state of matter is the mobile phase?
A.Solid
B.Liquid
C.Gas
D.Plasma
Download the worksheet for Experimental Techniques - Chromatography to practice offline. It includes additional chapter-level practice questions.
Methods of purification (Filtration, Crystallisation, Distillation)
SubtopicMethods of purification (Filtration, Crystallisation, Distillation) under Experimental Techniques for Grade 11 IGCSE.
Preview questions (no answers)
- 1.
Why should the solution be heated in an evaporating basin during the first stage of crystallisation?
A.To filter the impurities
B.To remove some of the solvent and make the solution concentrated
C.To turn the solute into a gas
D.To make the solution more dilute
- 2.
What is the purpose of the 'residue' in a filtration experiment?
A.It is the pure liquid product
B.It is the solid that could not dissolve and was removed
C.It is the solvent used to dissolve the solid
D.It is the gas given off during the reaction
- 3.
Which of these substances would be found in the round-bottom flask after the distillation of a solution of copper(II) sulfate and water is complete?
A.Pure water
B.Liquid ethanol
C.Solid copper(II) sulfate
D.Oxygen gas
Download the worksheet for Experimental Techniques - Methods of purification (Filtration, Crystallisation, Distillation) to practice offline. It includes additional chapter-level practice questions.