A) \[\text{MgO}\]
B) \[MgC{{l}_{2}}\]
C) \[MgSiO\]
D) \[SiC{{l}_{4}}\]
Correct Answer: B
Solution :
Silica reacts with Mg to form magnesium oxide (X) and when magnesium oxide (X) reacts with HCl, \[\text{MgC}{{\text{l}}_{\text{2}}}\text{(Y)}\] is obtained as: \[\text{Si}{{\text{O}}_{2}}+Mg\xrightarrow{{}}\underset{(X)}{\mathop{2MgO}}\,\,+Si\] \[MgO+2HCl\xrightarrow{{}}\underset{(Y)}{\mathop{MgC{{l}_{2}}}}\,+{{H}_{2}}O\]
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