Dilute hydrochloric acid is added to granulated zinc taken in a test tube. The following observations are recorded. Point out the correct observation. (a) The surface of metal becomes shining (b) The reaction mixture turns milky (c) Odour of a pungent smelling gas is recorded (d) A colourless and odourless gas is evolved
Thus, when dilute hydrochloric acid is added to granulated zinc placed in a test tube, the observation made is a colourless and odourless gas evolves with bubbles. Thus, the correct option is (D) a colourless and odourless gas evolves with bubbles.
