Question

Which of the following has $\mathrm{S}-\mathrm{S}$bond?

• A. ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_5$
• B. ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_6$
• C. ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_7$
• D. ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8$

Answer 1

Answer: (A), (B)

${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_6$

Explanation for the correct option

(A) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{5}}$

• From the structure of ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_5$it can be seen that it has a $\mathrm{S}-\mathrm{S}$bond

Hence, Option (A) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_5$ is correct

(B) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{6}}$

• From the structure of ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_6$it can be seen that it has a $\mathrm{S}-\mathrm{S}$bond.

Hence, Option (B) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{6}}$ is correct

Explanation for the incorrect options

The explanation for the incorrect answer

(C) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{7}}$

• From the structure of ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_7$it can be seen that it does not have a $\mathrm{S}-\mathrm{S}$bond.

(D) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{8}}$

• From the structure of ${\mathrm{H}}_2{\mathrm{S}}_2{\mathrm{O}}_8$it can be seen that it does not have a $\mathrm{S}-\mathrm{S}$bond.

Therefore, Options (A) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{5}}\mathbf{}$and (B) ${\mathbf{H}}_{\mathbf{2}}{\mathbf{S}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{6}}\mathbf{}$are correct.