WorksheetsFlame Tests
Total questions: 10
Worksheet time: 5mins
What colour does lithium produce in a flame test?
Yellow
Crimson
Blue-green
Brick red
Which metal ion produces a yellow/orange flame?
Sodium
Copper
Potassium
Calcium
What is the first step in performing a flame test?
Dip the loop into the sample
Make a small loop in the end of a clean nichrome wire
Hold the loop in a blue Bunsen flame
Record the colour observed
What colour does potassium produce in a flame test?
Lilac
Blue-green
Brick red
Crimson
Which metal ion produces a blue-green flame?
Calcium
Copper
Lithium
Sodium
What is the purpose of using concentrated hydrochloric acid in a flame test?
To clean the nichrome wire
To change the flame colour
To make the flame hotter
To cool down the sample
What colour does calcium produce in a flame test?
Yellow
Lilac
Brick red
Blue-green
Which metal ion is identified by a lilac flame?
Sodium
Potassium
Copper
Calcium
What should you do after dipping the loop into the sample?
Dip it into hydrochloric acid again
Hold the loop in a blue Bunsen flame
Make a new loop
Record the colour observed
What is the main use of a flame test?
To measure temperature
To identify metal cations in a sample
To clean metal samples
To heat up substances
