1.

In which one of the following reactions, 16 group element is precipitated

Answer»

`NA _(2) SO_(3) + Cl_(2) + H_(2)O to `
`SO_(2) + 2H_(2) O+ CL _(2)to`
`2FeSO_(4) + H_(2) SO _(4) + Cl _(2) to `
`Na_(2) S_(2) O _(3) + Cl _(2) + H_(2) O to `

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