Question

Consider the following species $(\mathrm{I}){\mathrm{S}}_4{\mathrm{O}}_6^{2-}$$(\mathrm{II}){\mathrm{S}}_3{\mathrm{O}}_9$$(\mathrm{III}){\mathrm{S}}_2{\mathrm{O}}_5^{2-}$$(\mathrm{IV}){\mathrm{P}}_3{\mathrm{O}}_9^{3-}$Which of the above species have same number of $X-0-X$ linkages? $(X=P\text{ or }S)$

• (A) II and III
• (B) I and IV
• (C) II and IV
• (D) I and II

Answer 1

The Correct Option is C

Explanation:

Three $(S-0-S)$ linkageSo (ii) and (iv) have 3 "X-O-X" linkage.and (i) and (iii) have 0 "X-O-X" linkage

Three $(P-0-P)$ linkage

No s-o-s linkage

So (ii) and (iv) have $3^{\prime \prime }\mathrm{X}$ -O-X" linkage.and (i) and(iii) have $0^{\prime \prime }\mathrm{X}-\mathrm{O}-{\mathrm{X}}^{\prime \prime }$ linkage