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SO(2) gas used as a bleaching agent. Its...

`SO_(2)` gas used as a bleaching agent. Its bleaching action is :

A

temporary and due to its oxidising nature

B

temporary and due to its reducing nature

C

permanent and due to its oxidising nature

D

permenent and due to its reducing nature

Text Solution

Verified by Experts

The correct Answer is:
B
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Sodium sulphite (Na_(2)SO_(3)) is added to meat as a preservative. The presence of Na_(2)SO_(3) can be detected by adding dil. H_(2)SO_(4) when the pungent smelling gas evolved turns the lime water milky. The gas evolved was detected as sulphur dioxide. The SO_(2) " to "SO_(4)^(2-) in titration. SO_(2)+2H_(2)O+I_(2) to 4H^(+)+SO_(4)^(2-)+2I^(-) In order to check the results of titration, excess barium chloride is added to the final solution. The resulting precipitate is collected and weighed. Q. SO_(2) gas is used as bleaching agent. Its bleaching action is :

Cl_(2) and SO_(2) are pollutants as well as bleaching agents . Their bleaching action is due to

The real bleaching agent present in bleaching powder is

Assertion : H_(2)O_(2) is used as a bleaching agent for delicate materials like silk, wool ets. Reason : The bleaching action of H_(2)O_(2) is due to reduction.

Which of the following statements are correct for SO_(2) gas? (a) It acts as bleaching agent in moist conditions. (b) Its molecule has linear geometry. (c ) Its dilute solution is used as disinfectant. (d) It can be prepared by the reaction of dilute H_(2)SO_(4) with metal sulphide.

SO_(2) and Cl_(2) both are used as bleaching agent. What factors cause bleaching ?

NARAYNA-16TH GROUP ELEMENTS-LEVEL-V
  1. SO(2) gas used as a bleaching agent. Its bleaching action is :

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  2. When sulphur is boiled with Na(2)SO(3) solution, the compound formed i...

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  3. The most acidic and most thermally stable set of chalcogen hydrides ar...

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  4. Which of the following has more number of p pi-dpi bonds?(all central ...

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  5. Which is not a reducing agent?

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  6. Which of the following does not give oxygen on heating?

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  7. The correct order of O - O bond length in O(2)H(2)O(2) and O(3) is

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  8. Which of the following statements regarding thiosulphate ion is incorr...

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  9. When H(2)S gas is passed into aqueous sulphur dioxide

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  10. Which of the following is not correct description?

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  11. SCl(4) on hydrolysis gives:

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  12. Which of the following is correct?

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  13. In which of the following conversions all the three oxygen atoms of O(...

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  14. Which of the following statements are incorrect

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  15. "Orange solid"overset(Delta)rarrunderset(gas)"diamagnetic"+underset("r...

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  16. Which of the following reactions depict the oxidising behaviour of H(2...

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  17. The product 'A' in the equation" 2KMnO(4)overset(Delta)rarrA+MnO(2)+...

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  18. In which of the following reaction does SO(2) acts as oxidising agent?

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  19. Which of the following will not be oxidised by O(3) ?

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  20. At room temperature , H(2)O is liquid while H(2)S is a gas . The reas...

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