A) \[Si{{F}_{4}}\]
B) \[{{H}_{2}}Si{{F}_{4}}\]
C) \[{{H}_{2}}S{{O}_{4}}\]
D) \[{{H}_{2}}Si{{F}_{6}}\]
Correct Answer: B
Solution :
Silicon tetra fluoride on hydrolysis furnish ortho silicic acid and hydrogen silicofluoride. \[\underset{\begin{smallmatrix} (\text{Silicon tetra} \\ \text{Fluoride}) \end{smallmatrix}}{\mathop{3Si{{F}_{4}}}}\,+\underset{\text{(Water)}}{\mathop{4{{H}_{2}}O}}\,\xrightarrow{{}}\underset{\begin{smallmatrix} (\text{Ortho} \\ \text{Silicic acid}) \end{smallmatrix}}{\mathop{{{H}_{2}}Si{{O}_{4}}}}\,+\underset{\begin{smallmatrix} (\text{Hydrogen Silico} \\ \text{Fluoride}) \end{smallmatrix}}{\mathop{2{{H}_{2}}Si{{F}_{4}}}}\,\]
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