question_answer

Usually a disilicate share only one oxygen of silicate unit But if in the disilicate, two O atoms are shared, then formula of its salt with potassium is :

A)  \[{{K}_{6}}S{{i}_{2}}{{O}_{7}}\]                 

B)  \[{{K}_{4}}S{{i}_{2}}{{O}_{6}}\]

C)  \[{{K}_{2}}S{{i}_{2}}{{O}_{6}}\]                 

D)  \[{{K}_{8}}S{{i}_{2}}{{O}_{6}}\]

Correct Answer: B

Solution :

\[=S{{i}_{2}}\,O_{6}^{4-}\,\Rightarrow \,{{K}_{4}}\,S{{i}_{2}}{{O}_{6}}\]