Chemistry Quiz
Test Your Chemistry Knowledge
Welcome to the Chemistry Quiz! This quiz is designed to challenge your understanding of various chemistry concepts and laboratory techniques. Test your knowledge and see how well you can apply theoretical concepts to practical scenarios.
- 10 multiple-choice questions
- Focus on laboratory techniques
- Suitable for students and chemistry enthusiasts
A student carries out an experiment to prepare pure magnesium sulfate crystals.He adds magnesium carbonate until no more reacts. Which process should he use for the next stage?
Crystallisation
Evaporation
Filtration
Neutralisation
A student separates salt from a mixture of salt and sand. What is the correct order of steps for the student to take?
Filter → evaporate → shake with water
Filter → shake with water → evaporate
Shake with water → evaporate → filter
Shake with water → filter → evaporate
A mixture of ethanol and methanol are separated by fractional distillation. This method of separation depends on a difference in property X of these two alcohols. What is property X?
Boiling point
Colour
Melting point
Solubility
A fruit drink coloured orange contains a dissolved mixture of red and yellow colouring agents. One of these colouring agents is suspected of being illegal. Which method could be used to show the presence of this illegal colouring agent?
Chromatography
Distillation
Evaporation
Filtration
Which method is most suitable to obtain zinc carbonate from a suspension of zinc carbonate in water?
Crystallisation
Distillation
Evaporation
Filtration
Ethanol is made by fermentation. How is ethanol obtained from the fermentation mixture?
Chromatography
Crystallisation
Electrolysis
Fractional distillation
Which two methods can be used to separate a salt from its solution in water? 1. crystallisation 2. decanting 3.distillation 4.filtration
1 and 2
1 and 3
2 and 3
3 and 4
The results of some tests on a colourless liquid X are shown. • Boiling point = 102°C • Universal Indicator turns green What is X?
Ethanol
Hydrochloric acid
Pure water
Sodium chloride (salt) solution
Which method separates a mixture of sugar and glass?
Dissolve, filter and evaporate
Distil and filter
Fractionally distil
Use chromatography
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