Which one of the following materials contains calcium? A. China clay B. Corundum C. Talc D. Gypsum Answer Workspace Report Discuss Answer with explanation Answer: Option D Explanation Explanation: Gypsum is known as calcium sulphate ..(Cas(o)4).. It contains calcium about 23.3 %.. Rest of the options have not contains calcium.. So the correct answer is GYPSUM.. Workspace
Discuss about the question