A gas cylinder contain hydrogen gas . Write one chemical test to identify it.

Dear Student
Hydrogen gas ignites in air.
Transfer some of the hydrogen gas from the cylinder to a small beaker or a test tube, to verify it is a hydrogen gas. 
Hydrogen gas is present in a test tube, then a lighted candle or burner held near its mouth, gas ignites with a squeaky pop sound.
It confirms that the gas is hydrogen gas.
Regards

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Dear student,

We know that hydrogen gas burns with the pop sound.

Perform the following activity to identify hydrogen gas:

Take small amount of gas out of the cylinder and then burn it with the help of burning splint.


Observation and conclusion :
The gas will burn with a pop sound. Hence, it is hydrogen gas.

Regards!!
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