A) portland cement
B) sorrels cement
C) double salt
D) gypsum
E) none of these
Correct Answer: B
Solution :
Mixture of\[MgC{{l}_{2}}\]and\[MgO\]is called Sorrels cement. It is\[MgC{{l}_{2}}.5MgO.x{{H}_{2}}O\].
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