Which of the following statement are correct <br> A. chemical name of bleaching powder is calcium oxychloride<br> B. Bleaching powder is used for sterilization of drinking water <br> C. Bleaching powder is alkaline in nature hence it is used as antacid <br> D. Bleaching powder is manufactured by Hasenclever?s plant

Question

$\begin{array}{1 1} (a)\;B\;and\;C \\ (b)\;All \;of\;these\\ (c)\;A\;and\;C \\ (d) \;A,B\;and\;D \end{array} $