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Acidified K2Cr2O7 solution turns green b...

Acidified `K_2Cr_2O_7` solution turns green by:

A

`CO_2` gas

B

`SO_2` gas

C

HCl gas

D

`H_2S` gas

Text Solution

Verified by Experts

The correct Answer is:
B
`SO_2` gas turns acidified `K_2Cr_2O_7` solution green
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MODERN PUBLICATION-APPENDIX A-Multiple Choice Questions (Level-I)
  1. Aqueous solution of an acetate salt, when heated with FeCl3 solution g...

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  2. Nitric acid is generally not used for preparing original solution in ...

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  3. Acidified K2Cr2O7 solution turns green by:

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  4. Which of the following statement is not correct ?

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  5. Which of the following statement is not true ?

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  6. The enthalpy of neutralisation of all strong acids with strong bases i...

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  7. Carboxylic acid group can be tested by all the following tests except

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  8. 2, 4-Dinitrophenylhydrazine test is used for :

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  9. Alcohols react with ceric ammonium nitrate reagent and give :

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  10. Ferric chloride (neutral) reacts with catechol to give :

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  11. Tollen's reagent test can be performed to detect :

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  12. Iodoform test is characteristic of:

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  13. Buff colour is produced by the reaction of neutral FeCl3 with:

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  14. Which of the following organic compound gives carbylamine test ?

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  15. Azo dye test is used to distinguish between :

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  16. Reaction of ferrous salts with KMnO4 is a:

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  17. For a (N)/(10) solution of KMnO4, its molarity will be:

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  18. KMnO(4) acts as an oxidising agent in the presence of dil H2 SO4. Its ...

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  19. A solution of impure KMnO4 is prepared by dissolving 2g of it in IL of...

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  20. Aniline yellow is prepared by coupling of benzene diazonium chloride w...

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