Photo AI
A student does a flame test with a sample of potassium chloride - OCR Gateway - GCSE Chemistry - Question 1 - 2023 - Paper 2
Question 1
A student does a flame test with a sample of potassium chloride. Which colour is the flame? A Lilac B Green-blue C Red D Yellow Your answer
Worked Solution & Example Answer:A student does a flame test with a sample of potassium chloride - OCR Gateway - GCSE Chemistry - Question 1 - 2023 - Paper 2
Step 1
Which colour is the flame?
Answer
When conducting a flame test with potassium chloride, the characteristic flame color observed is lilac. This specific color is due to the excitation of potassium ions in the flame, which emit light at specific wavelengths. Therefore, the correct answer is:
A. Lilac.