Question

Describe a test for hydrogen?

Answer 1

We know that when we say that hydrogen is burning, it’s actually undergoing a chemical reaction. In this chemical reaction hydrogen combines with oxygen to sort water and releases a lot of energy. A positive catalyst increases the rate of a chemical equation.

Complete answer:
Hydrogen is the most ample component or chemical substance that's accessible in our universe. It makes up ninety per cent of all the atoms. It's the littlest and therefore the lightest of all parts having number one and mass as $1.008$ element is generally seen within the style of a gas and is colourless, scentless however combustible. To take a look at the presence of elements the subsequent test will be performed. A lighted picket splint makes a pop sound in an exceedingly tube of element. Characteristics take a look at for element $({{H}_{2}})$ gas will be performed by transferring a burning candle close to the supply of element. On doing thus, element gas burns with a high-pitched pop sound. Element gas is recognized by the ‘pop’ once it burns. The ‘pop’ is the sound of a little explosion. Element gas is extremely combustible. Hydrogen is prepared in the laboratory by the action of the dilute hydrochloric acid or dilutes sulphuric acid on granulated zinc. Granulated zinc gives more surface area for the acid to act, so hydrogen is formed faster. Granulated zinc is ideal for the preparation of hydrogen gas in chemical laboratories, the ability to act as a catalyst to the associated chemical reaction and, therefore, increase the rate of the chemical reaction without actually participating in it.

Note:
Remember that a lot of warmth is released into the gaseous mixture and therefore the air adjacent there expands very quickly. And this gaseous mixture contains hydrogen, oxygen and water vapour liberated from the reaction. This rapid expedition of gas molecules causes a break of the sound barrier. And because of this explosion we hear the pop sound of hydrogen burning.