Question

What is the empirical formula of sheet silicates ?

• A. $(S{i}_2{O}_5{)}_n^{2n-}$
• B. $N{O}_2,O_2$
• C. $(Si{O}_3{)}_n^{n-}$
• D. $(S{i}_2{O}_7{)}_n^{3n-}$

Answer 1

The correct option is A $(S{i}_2{O}_5{)}_n^{2n-}$

$(S{i}_2{O}_5{)}_n^{2n-}$ is the empirical formula of sheet silicates. $[Si{O}_4{]}^{4-}$ tetrahedral are joined with other tetrahedral.

The sheet silicates are an important group of minerals that includes the micas, chlorite, serpentine, talc, and clay minerals.

Example includes Mica or Muscovite and Talc.

Hence, option $A$ is correct.