Question

A student takes sodium hydrogen carbonate powder in a test-tube and pours 4—5 drops of acetic acid over it. He observes : (A) No reaction in the test«tube (B) Bubbles of a colourless and odourless gas (C) A colourless gas with a pungent smell (D) Evolution of brown coloured gas along with a brisk effervescence in the test-tube

Answer 1

B)bubble of colorless and odorless gass

Answer 2

Answer:

(B)

Explanation:

(B) bubbles of colourless and odourless gas