In the chemical test for ammonium ions, dilute sodium hydroxide solution is added to a sample containing ammonium ions and the mixture is heated gently.
A gas is produced which turns damp red litmus paper blue.
Give the name of this gas.
Practise Edexcel GCSE Chemistry Qualitative analysis: tests for ions with exam-style questions for Foundation and Higher tier. 127 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.