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Sodium thiosulphate is prepared by...

Sodium thiosulphate is prepared by

A

reducing `Na_(2)SO_(3)` solution with `H_(2)S`

B

Boiling `Na_(2)SO_(3)` with S in alkaline medium

C

Neutralising `H_(2)S_(2)O_(3)` solution with NaOH

D

Boiling `Na_(2)SO_(3)` with S in an acidic medium

Text Solution

Verified by Experts

The correct Answer is:
B
`Na_(2)SO_(3) + S underset(OH^(-))overset("Boiling")rarr Na_(2)S_(2)O_(3)`
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Explore conceptually related problems

Statement -1 : Sodium thiosulphate is not prepared by boiling Na_(2)SO_(3) with S in acidic medium. Statement -2 : Na_(2)S_(2)O_(3)+H^(+) to 2Na++H_(2)SO_(3)+Sdarr

Sodium chromate is prepared by fusing

Sodium thiosulphate is formed when:

Knowledge Check

  • Statement -1 : Sodium thiosulphate is not prepared by boiling Na_(2)SO_(3) with S in acidic medium. Statement -2 : Na_(2)S_(2)O_(3)+H^(+) to 2Na++H_(2)SO_(3)+Sdarr

    A
    Statement -1 is true , Statement-2 is true, Statement-2 is a correct explantion for Statement -1.
    B
    Statement -1 and Statement- 2 both are False.
    C
    Statement -1 is true, Statement- 2 is false.
    D
    Statement -1 is true, Statement- 2 is false.

  • Sodium thiosulphate can be prepared by

    A
    Boiling `Na_(2)SO_(3)` solution with sulphur in acidic medium
    B
    Boling an aqueous solution of NaOH with sulphur
    C
    Neutralising `H_(2)SO_(4)` with NaOH
    D
    Boiling `Na_(2)SO_(3)` with sulphur in alkaline medium

  • Sodium chromate is prepared by fusing

    A
    sodium dichromate with carbon
    B
    `(NH_(4))_(2)Cr_(2)O_(7)` with sodium hydrogen sulphate in introgen
    C
    chromite `(Fecr_(2)O_(4))` with sodium hydroxide in air.
    D
    chromite `(FeCr_(2)O_(4))` with sodium chloride in air.
    • RESONANCE-NITROGEN & OXYGEN FAMILY-Part-II National Standard Examination in chemistry
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    2. Which element of group V A shows maximum oxidation states ?

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    3. Which of the halide is unstable ?

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    4. Platinum metal (Pt) dissolves in aqua-regia but not in concentrated HC...

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    5. The reaction 3O(2(g)) rarr 2O(3(g)) is endothermic. What can be conclu...

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    6. The anhydride of nitric acid is

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    7. The geometry of ammonia molecule can be best described as

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    9. Inert pair effect plays an important role in the case of

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    10. In the presence of an anthraquinone derivatives as a catalyst, the aqu...

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    11. In the above reaction (in Q.99) Na(2)S(2)O(4) acts as a

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    12. The ozone hole in the upper atmosphere of the earth is due to the brea...

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    13. The electron -pair geometry of the central oxygen atom of ozone is

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    14. P(4)(s) + 3OH^(-) (aq) + 3H(2)O (I) rarr PH(3) (g) + 3H(2)PO(2)^(-) (a...

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    15. The compound which can act as an oxidizing agent as well as reducing a...

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    16. When an inert atmosphere is required in metallurgical operation nitrog...

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    17. The nitrogen compound formed when CaCN(2) reacts with steam or hot wat...

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    18. The element that has the highest tendency to catenate is

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    19. The chemical formula of 'laughing gas' is

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    20. Phosphine is prepared by the action of

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