Chemistry · May / June 2021 · Paper 11 · Question 5

5070Identification of ions and gases

Gas X has the following properties. 1 colourless 2 no effect on either damp red or blue litmus papers 3 no effect on limewater 4 flammable What is gas X?

Aammonia
Bchlorine
Chydrogen
Doxygen

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Correct answer: C. hydrogen

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May / June 2021 Paper 12, question 5