When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil. Name the gas evolved.
![Test for Hydrogen (8.2.1) | AQA GCSE Chemistry: Combined Science Revision Notes 2018 | Save My Exams Test for Hydrogen (8.2.1) | AQA GCSE Chemistry: Combined Science Revision Notes 2018 | Save My Exams](https://cdn.savemyexams.co.uk/cdn-cgi/image/w=1920,f=auto/uploads/2020/02/Test-for-Hydrogen-1.png)
Test for Hydrogen (8.2.1) | AQA GCSE Chemistry: Combined Science Revision Notes 2018 | Save My Exams
![Mr Williams on Twitter: "Tests to identify gases: 1. Carbon dioxide: pass the gas through limewater, if present the limewater will turn cloudy 2. Oxygen: a glowing splint into the sample, if Mr Williams on Twitter: "Tests to identify gases: 1. Carbon dioxide: pass the gas through limewater, if present the limewater will turn cloudy 2. Oxygen: a glowing splint into the sample, if](https://pbs.twimg.com/media/DUzbr-GXUAEmJvC.jpg)
Mr Williams on Twitter: "Tests to identify gases: 1. Carbon dioxide: pass the gas through limewater, if present the limewater will turn cloudy 2. Oxygen: a glowing splint into the sample, if
![Starter: Quick Quiz What gas is produced when metals are reacted with acid? How do you test to see if this gas is present? Extension: Write the word equation. - ppt download Starter: Quick Quiz What gas is produced when metals are reacted with acid? How do you test to see if this gas is present? Extension: Write the word equation. - ppt download](https://images.slideplayer.com/27/8934147/slides/slide_5.jpg)