Which one of the following is present in the | vedclass

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(B) Chain silicates are formed by sharing two oxygen atoms per $SiO_4^{4-}$ tetrahedron.There are two main types of chain silicates:$1$. Simple chain

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$(SiO_3^{2-})_n$

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(B) Chain silicates are formed by sharing two oxygen atoms per $SiO_4^{4-}$ tetrahedron.There are two main types of chain silicates:$1$. Simple chain silicates (pyroxenes) which have the general formula $(SiO_3^{2-})_n$.$2$. Double chain silicates (amphiboles) which have the general formula $(Si_4O_{11}^{6-})_n$.Examples of simple chain silicates include spodumene $LiAl(SiO_3)_2$ and enstatite $MgSiO_3$.Therefore,the correct option is $B$.

Which one of the following is present in the chain structure of silicates?

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