Question

Take a piece of zinc granules metal in the test tube. Drop 10ml of dilute sulphuric acid in a test tube. Bring a burning matchstick near the mouth of the test tube.​

Answer 1

Answer:

Displacement reaction.

The reaction involved is     $Zn + H_{2}SO_{4}$   ⇒   $ZnSO_{4} + H_{2}$

If we bring a burning sphincter or matchstick, we hear 'pop' sound as the hydrogen gas burns producing a sound.