Titanium is extracted from titanium chloride by reacting it with sodium at a very high temperature. This industrial process is carried out in an atmosphere of argon gas rather than in air.
Which property of argon makes it suitable for this use?
Argon has a low boiling point
Argon is unreactive
Argon is less dense than air
Argon is a diatomic gas
Practise Edexcel GCSE Chemistry Group 0 with exam-style questions for Foundation and Higher tier. 30 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.