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Passage - I : Yellow solid 'A' is...

Passage - I :

Yellow solid 'A' is

A

`H_(2)SO_(5)`

B

S

C

`S_(2)O_(7)`

D

None of these

Text Solution

Verified by Experts

`S+underset((A))(6HNO_(3))to underset((aq))(H_(2)SO_(4))+underset((B))(6NO_(2(g)))+2H_(2)O`
`underset((A))(Na_(2)SO_(3))+S to underset((C ))(Na_(2)S_(2)O_(3))`
`underset((C ))(Na_(2)S_(2)O_(3))+2HCl to 2NaCl+SO_(2)+S+H_(2)O`
`therefore A=` sulphur , `B=NO_(2)` (Reddish Brown Gas) : `C=Na_(2)S_(2)O_(3)` (Hypo) , `D=SO_(2)` (Colour less gas) , E = Sulphur (PPT)
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Knowledge Check

  • Passage - I : A yellow powder 'x' is burnt in a steam of Fluorine to obtain a colourless gas 'y' which is thermally stable and chemically inert its molecule has octahedral geometry another colourless gas 'z' with same constituent atoms as that of 'y' is obtained when sulphur dichloride is heated with sodium fluoride. It's molecule has trigonal bi-pyramidal geometry The yellow powder 'x' is

    A
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    `K_(2)CrO_(4)`
    D
    S

  • Passage - II : The solid(A) is a laboratory reagent. Give the following reactions. i) On strongly heating it gives two oxides of sulphur ii) On adding aqueous NaOH solution to its aqueous solution a dirty green precipitate is obtained, which starts turning brown on exposure to air. The solid A is

    A
    `BaCl_(2)`
    B
    `FeSO_(4)`
    C
    `CaSO_(4)`
    D
    None of these

  • Passage - II : The solid(A) is a laboratory reagent. Give the following reactions. i) On strongly heating it gives two oxides of sulphur ii) On adding aqueous NaOH solution to its aqueous solution a dirty green precipitate is obtained, which starts turning brown on exposure to air. What is compound in dirty green ppt.

    A
    `Ca(OH)_(2)`
    B
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    C
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    D
    None of these

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    Passage-I : Metallic sulphates can be obtained by reacting the metals (above hydrogen in ECS), or its oxide, hydroxide or carbonate with dil. H_(2)SO_(4) . Group IA metals also form hydrogen sulphates which can be isolated in solid. In general metal sulphates are soluble in water and crystallize with water of crystallization. Sulphates are thermally more stable than nitrates. Select the stable hydrogen sulphate which can be obtained in solid state:

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