Question

A metal A reacts with acid gives out a colourless and odourless gas which burns with a pop sound. Name the gas and write the eq​

Answer 1

Answer:

Ans. When an acid react with a metal it liberates hydrogen gas. To test the presence of H2 gas, bring a burning splinter near the mouth of the test tube where H2 gas is released, the match stick bums with a pop sound.