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Name one substance which can be used as ...

Name one substance which can be used as a catalyst in the formation of `SO_3`, from `SO_2` Also give the relavent chemical equation.

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Vanadium pentoxide `(V_2O_5)`.
`2SO_2 + O_2 overset(V_2O_5) hArr 2SO_3`
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ICSE-P-BLOCK ELEMENTS-EXERCISE (PART-II)(DESCRIPTIVE QUESTIONS)(VERY SHORT ANSWER QUESTIONS)
  1. Why quicklime is not used for drying SO2?

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  2. What is produced when SO2 is dissolved in water?

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  3. Name one substance which can be used as a catalyst in the formation of...

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  4. Write one chemical equation to show that SO2 acts as a reducing agent...

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  5. What happens when SO2 reacts with Cl2 : (i) in presence of sunlight....

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  6. SO2 acts as a bleaching agent. How?

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  7. Dry SO(2) does not bleach dry flowers because

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  8. Why does SO2 exhibit bleaching action only in presence of water?

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  9. What happens when H2S reacts with SO2 ?

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  10. What happens when SO2 is passed through caustic soda solution ?

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  11. What is the bond angle in SO2 ?

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  12. State the name of anhydride of H2SO4.

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  13. Why sulfuric acid is described as king of chemicals ?

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  14. Why sulfuric acid is also known as oil of vitriol?

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  15. Why the process of manufacture of H2SO4 is named contact process ?

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  16. In the the manufacture of sulphuric acid by the Contact process ,give ...

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  17. Why vanadium pentoxide is considered as a better catalyst than platini...

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  18. Why heating of catalyst is discontinued the moment the oxidation of su...

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  19. Explain the following giving suitable reasons: In the manufacture of H...

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  20. Sulfuric acid having concentration greater than 98.5% H2SO4 cannot be...

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