Test for Hydrogen Flashcards

All 5 cards in this deck

What is the test for hydrogen gas?

Hold a burning (lit) splint at the open end of a test tube of the gas.

What is the positive result of the test for hydrogen gas?

The gas burns rapidly with a (squeaky) pop sound.

True or false? A glowing splint is used to test for hydrogen.

False. A burning (lit) splint is used for hydrogen; a glowing splint is the test for oxygen.

Which gas test would you use on the gas given off when a metal reacts with a dilute acid, and what would you see?

A burning splint at the mouth of the tube; it burns with a squeaky pop, showing hydrogen.

What are the steps to test a gas for hydrogen?

e.g. the gas given off when magnesium reacts with dilute hydrochloric acid

1. Collect the gas in a test tube.
2. Hold a burning splint at the open end of the tube.
3. A squeaky pop shows the gas is hydrogen.