Gas Tests

Question 1

How to test for hydrogen:

Answer 1

Do a reaction, trap the gas and put a lit splint as the base of the test tube

Question 2

Example chemical reaction for hydrogen:

Answer 2

Hydrochloride acid and magnesium

Question 3

Positive result for hydrogen:

Answer 3

The lit splint goes out with a pop

Question 4

How to test for oxygen:

Answer 4

Do a chemical reaction and trap the gas. Light a splint and blow it out, then put it in the test tube.

Question 5

Positive result for oxygen:

Answer 5

The blown out splint relights

Question 7

Positive result for CO2:

Answer 7

The lit splint goes out

Question 8

How to test for CO2:

Answer 8

1. Bubble the gas through limewater

2. Do a reaction, trap the gas and put a lit splint at the base of the test tube

Question 9

Positive result for chlorine:

Answer 9

The blue litmus paper goes pink then white

Question 11

How to test for chlorine:

Answer 11

Do a reaction, trap the gas and put a piece of blue litmus paper at the base of the test tube.