Why does hydrogen gas burns with a pop sound?

A lot of energy is released by hydrogen when it combusts. And this gaseous mixture contains hydrogen, oxygen and water vapor liberated from the reaction. This quick expandation of gas molecules causes a break of the sound barrier. And because of this explosion we hear the pop sound of hydrogen burning.

Why do we hear a popping sound when hydrogen burns at the mouth of a test tube?

Hydrogen gas is highly flammable . You can safely test for small quantities of hydrogen gas (eg collected in a test tube) by holding a burning splint near to the top of the test tube. The positive result is a squeaky pop sound as the hydrogen reacts with oxygen in the air in a small explosion.

Why do we get a popping sound when we bring a burning stick near the mouth of test tube containing acids and metals?

INFERENCE- Metals react with acids and displaces hydrogen from the acids to produce hydrogen gas and metal salt. If a matchstick is brought near the mouth of the tube containing the product of the reaction then we hear a pop sound. It is this hydrogen gas that burns with a pop sound.

Why do we hear a pop sound when a piece of sodium is placed in water filled in a beaker?

As before, the ‘pop’ sound indicates the presence of hydrogen gas. Metals react with sodium hydroxide to produce hydrogen gas.

What does the pop sound indicate in a reaction Support your answer with one reaction?

Metals on reaction with acids liberate hydrogen gas. To test the hydrogen gas, a small fire/flame can be brought near to the hydrogen gas. The pop sound comes from the small explosion formed by the burning of hydrogen with oxygen.

What does the squeaky pop test show?

The squeaky pop experiment is a typical science lab technique used to test for the presence of hydrogen, which is both colorless and odorless. When you have hydrogen gas trapped in a container, you can place a lit match near it and it will make a characteristic “squeaky pop” sound as it reacts with the flame.

Which of the following gases burn explosively?

Hydrogen burns with pop sound.

What gas is produced by burning charcoal?

carbon dioxide gas
(b)Charcoal contains carbon which on burning forms carbon dioxide gas. The gas evolved is collected in a test tube and water is added to it.

What does pop sound indicate?

Reaction with bases: Metals react with sodium hydroxide to produce hydrogen gas with a pop sound. Pop sound indicates the presence of Hydrogen gas. The reaction of non-metals with bases is very complex.