A small piece of heated potassium metal on a deflagrating spoon is lowered into a gas jar containing pale green chlorine gas, as shown in the diagram.
During the highly vigorous reaction, the pale green colour disappears and a white crystalline solid is formed, coating the inside of the gas jar.
Identify the white solid.
Group 7 Questions
Practise Edexcel GCSE Chemistry Group 7 with exam-style questions for Foundation and Higher tier. 87 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.