Take a clean test tube with holder and pour some dilute hydrochloric acid. Add few pieces of magnesium ribbon pieces slowly. What do you observe? Now show a burning match stick near the mouth of the test tube. Do you hear any sound? The gas burns with a pop sound. From this it is observed that hydrogen gas has been formed due to the reaction between acid and metal.

Take a clean test tube with holder and pour some dilute hydrochloric a

1.	Take a clean test tube with holder and pour some dilute hydrochloric acid. Add few pieces of magnesium ribbon pieces slowly. What do you observe? Now show a burning match stick near the mouth of the test tube. Do you hear any sound? The gas burns with a pop sound. From this it is observed that hydrogen gas has been formed due to the reaction between acid and metal.
Answer» The gas bums with a pop sound. From this it is observed that hydrogen gas has been formed due to the reaction between acid and metal.