JIPMER2015Chemistryp Block Elements (Group 13 & 14)
Number of oxygen atoms shared per SiO ₄⁴⁻ tetrahedron in I. two dimensional sheet structured silicates II. cyclic silicates and III. single strand chain silicates respectively are
Options
- A3,3,2
- B3,2,2
- C4,3,1
- D4,3,2
Correct answer
B. 3,2,2
Step-by-step solution
In two dimensional sheet silicates, three oxygens of each SiO ₄⁴⁻ units are shared. Hence, it contain ( Si ₂ O ₅ )_n²⁻ type anions. Cyclic silicates are obtained by sharing of two oxygenatoms of each SiO ₄⁴⁻ tetrahedron. Chain silicates are also formed by the sharing of two oxygen atoms of each SiO ₄⁴⁻ units.