Lesson 4.8.3.7
4.8.3.7 Flame emission spectroscopy Quiz: AQA Chemistry, Unit 8
20 questions
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Lesson 4.8.3.7, Flame emission spectroscopy: 20 multiple choice questions for the AQA GCSE Chemistry (8462), Unit 8: Chemical analysis, written with Revision Ninja.
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The 20 questions
-
What is the output of flame emission spectroscopy?
- A single colour flame
- A colourless gas
- A solid precipitate
- A line spectrum
-
In flame emission spectroscopy, where is the liquid sample placed?
- Into a flame
- Into a crucible
- Into a centrifuge
- Into a burette
-
What is passed through a spectroscope during flame emission spectroscopy?
- Infrared radiation
- Electric current
- X-ray beams
- Light given out
-
Apart from identifying metal ions, what else does flame emission spectroscopy measure?
- Their atomic masses
- Their concentrations
- Their electrical charge
- Their boiling points
-
Flame emission spectroscopy is an example of which type of method?
- A distillation
- A precipitation test
- A titration
- An instrumental method
-
What must accompany chart data to interpret instrumental results correctly?
- A pH indicator
- A reference set
- A balance scale
- A litmus paper
-
What is the primary function of a reference spectrum in instrumental analysis?
- Neutralising the acid
- Identification comparison
- Heating the sample
- Filtering the solution
-
Which portable equipment can students use to observe flame spectra directly?
- Hand-held spectroscope
- Digital thermometer
- Electron probe
- Light microscope
-
Which type of sample is analysed using flame emission spectroscopy?
- Non-metal precipitates
- Pure gases only
- Solid metal samples
- Metal ions in solution
-
What change in the spectrum indicates a higher concentration of a metal ion?
- A shorter wavelength
- A different colour
- More spectral lines
- A more intense line
-
How is a metal ion identified from a flame emission spectrum?
- Calculating atomic mass
- Measuring flame temperature
- Matching reference spectra
- Weighing the sample
-
What is the function of the spectroscope in flame emission spectroscopy?
- To measure temperature
- To split emitted light
- To heat the sample
- To dissolve the solid
-
Which formats are specified for interpreting flame emission results?
- Pie charts only
- Written paragraphs
- Charts or tables
- Bar graphs only
-
Which metal ion is identified when a sample matches potassium reference lines?
- Potassium ions
- Calcium ions
- Copper ions
- Sodium ions
-
What major advantage does flame emission spectroscopy have over a basic flame test?
- Cheaper equipment
- No flame required
- Faster heating time
- Measures concentration
-
What is required alongside a flame emission spectrum to interpret the results?
- A chemical indicator
- A reference set
- A periodic table
- A titration curve
-
Which observation indicates a higher concentration of a metal ion in solution?
- Decreased wavelength
- Lower flame temperature
- Increased line intensity
- Fewer spectral lines
-
What is the first practical step in flame emission spectroscopy?
- Filtering the solution
- Putting sample into flame
- Adding sodium hydroxide
- Weaving the wire
-
Which category best describes flame emission spectroscopy?
- A displacement reaction
- A titration method
- A precipitation test
- An instrumental method
-
What two properties are determined about metal ions using flame emission spectroscopy?
- Density and melting point
- Mass and volume
- Identity and concentration
- pH and solubility
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