Sunita and Rajat are performing experiments in the lab to study the properties of acids. Sunita added a pinch of solid sodium carbonate in dilute HCl solution, taken in test tube A. She observed a brisk effervescence indicating the evolution of a colourless, odourless gas. She passed this gas through lime water and recorded the observations. In another test tube B, Rajat added zinc granules to dilute HCl solution and observed bubbles of a gas. He used a burning splinter to test the presence of this gas. a) What change did Sunita observe in the lime water? b) Write the balanced chemical equation corresponding to the reaction occurring in test tube A. c) Name the gas released in test tube B. d) Identify the type of reaction occurring in test tube B.
Answers
Explanation:
Sunita and Rajat are performing experiments in the lab to study the properties of acids. Sunita added a pinch of solid sodium carbonate in dilute HCl solution, taken in test tube A. She observed a brisk effervescence indicating the evolution of a colourless, odourless gas. She passed this gas through lime water and recorded the observations. In another test tube B, Rajat added zinc granules to dilute HCl solution and observed bubbles of a gas. He used a burning splinter to test the presence of this gas. a) What change did Sunita observe in the lime water? b) Write the balanced chemical equation corresponding to the reaction occurring in test tube A. c) Name the gas released in test tube B. d) Identify the type of reaction occurring in test tube B.