Question

Why does the gas released on treating base with a metal burns with a pop sound?

• A. It solidifies and forms a pop sound
• B. Flame ignites the gas and forms a pop sound
• C. Flame liquefies the gas and thus forms a pop sound
• D. The above statement is incorrect

Answer 1

Answer: (B)

Flame ignites the gas and forms a pop sound

Hydrogen gas is released when metal reacts with a base. A lighted wooden splint goes pop if it is put into a test tube of hydrogen. This is because the flame ignites the hydrogen, which burns explosively to make a loud sound.