CSEC Chemistry · May/June 2017 · Paper 1 · Question Q27

Which test can be used to identify an acidic gas?

1. (A)Damp blue litmus paper turns red
2. (B)Damp red litmus turns blue
3. (C)Splint relights
4. (D)Splint extinguishes with a pop

This question uses a figure or table from the paper — you'll see it when you practise.