Related Questions

An element 'A' is reacted with dilute hydrochloric acid in a test tube. Bubbles of a colourless gas evolve. This gas burns with a pop sound when a burning matchstick is brought near the mouth of test tube. Based on this observation, which of the following statements is correct?
Which among the following are colourless plastids with varied shapes and sizes?
Which of the following gases is a highly poisonous, odourless, tasteless and colourless gas?