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Which of the following salt would give S...

Which of the following salt would give `SO_2` with hot and dil. `H_2 SO_4` and also decolourise `Br_2` water?

A

`Na_2SO_3`

B

`NaHSO_4`

C

`Na_2SO_4`

D

`Na_2S `

Text Solution

Verified by Experts

The correct Answer is:
A
`Na_2SO_(3)` reacts with hot and diluted `H_2SO_(4)` to give `SO_(2)` gas which decolourises bromine water .
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-P-BLOCK ELEMENTS -Exercise 2
  1. On treating PCl(5) with H(2)SO(4), sulphuryl chloride (SO(2)Cl(2)) is ...

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  2. Write the conditions to maximise the yield of H2SO4 by contact process...

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  3. Each of the following is true for white and red phosphorus except that...

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  4. Which oxide does not act as a reducing agent?

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  5. The number of P-O-P bonds in cyclic metaphosphoric acid is.

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  6. Consider the following compounds : (i) sulpher dioxide (ii) hydrog...

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  7. Liquide ammonia is used for refrigeration beacause

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  8. Which one of the following pairs of reactantas does not form oxygen wh...

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  9. In the reaction HCOOH overset (H2SO4)to CO+H2O,H2SO4 acts as

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  10. Ammonia , on reaction with hypochlorite anion, can form

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  11. The percentage of p-character in the orbitals forming p-p bonds in P4 ...

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  12. The reason why conc. H2SO4 is used extensively to prepare other acids ...

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  13. A substance which gives a yellow precipitate when boiled with an exce...

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  14. Which of the following statements regarding ozone is not true?

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  15. Which of the following salt would give SO2 with hot and dil. H2 SO4 an...

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  16. In which cases, the order of acidic strength is not correct ?

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  17. Which of the following dissolves in water but does not give any oxya...

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  18. Identify the incorrect statement among the following.

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  19. Concentrated hydrochloric acid when kept in open air sometimes produce...

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  20. The reaction of the type 2X2 + S to SX4 is shown by sulphur when X is

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