Question

which test should me made before collecting hydrogen in a gas jar??

plz help....​

Answer 1

Answer:

A burn test.

Explanation:

1. Hydrogen, when burnt gives a unique 'pop' sound.

2. this is useful to check whether hydrogen is actually formed.

3. Thus, this is the test to be performed before collecting Hydrogen in a glass jar.

Answer 2

Answer:

Hydrogen burns with a pop sound, hence Hydrogen should be tested with a burning flame if the burning produces a pop sound it confirms the production of Hydrogen gas.