MCQ
Which of the following Compounds has peroxide linkage ?
- A${S_2}O_3^{ - 2}$
- ✓${S_2}O_8^{ - 2}$
- C${S_2}O_5^{ - 2}$
- D${S_2}O_7^{ - 2}$

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Assertion $A$ : Aniline on nitration yields ortho, meta and para nitro derivatives of aniline.
Reason $R$: Nitrating mixture is a strong acidic mixture.
In the light of the above statements, choose the correct answer from the options given below
${{\text{[Fe(F)(Cl)(Br)(I)(N}}{{\text{H}}_3}{\text{)(}}{{\text{H}}_2}{\text{O)]}}^\Theta }$