question_answer

  A calcium compound which is a yellowish white powder is used as a disinfectant and also in textile industry. (a) Name the compound. (b) Which gas is released when this compound is left exposed to air?

Answer:

                  (a) Bleaching powder or calcium oxychloride                                                                  (1) (b) When exposed to air, it releases  gas according to the following reaction with  present in air.   (1)