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How does hydrofluoric acid react with sa...

How does hydrofluoric acid react with sand ?

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USHA PUBLICATION-P-BLOCK ELEMENTS( GR-15,GR16,GR17,GR18)-EXERCISE
  1. Explain why SO2 is more powerful reducing agent in alkaline medium tha...

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  2. In contact process SO3 is not directly dissolved in water, explain why...

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  3. How does hydrofluoric acid react with sand ?

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  4. What happens when Zinc metal is treated with dilute H2SO4 ?

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  5. Explain that bleaching action of CL2 is permanent, while that of SO2 i...

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  6. Explain that bleaching action of CL2 is permanent, while that of SO2 i...

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  7. What happens when SO2gas is passed through lime water first slowly and...

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  8. How does Ozone react with KI solution ?

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  9. Write the shapes and type of hybridisation of the following molecules ...

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  10. How does ozone react with SnCl2

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  11. How does Ozone react with KI solution ?

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  12. What is the action of ozone on hydrogen peroxide ?

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  13. What happens when XeF6 is heated with water ?

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  14. Write all the noble gases. Why don't they enter into chemical combinat...

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  15. Give two reactions of fluorine, one with metal and other with nonmetal...

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  16. How can you prepare xenon hexafluoride ?

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  17. How does ozone react with moist iodine?

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  18. What does H2SO4 behave when it reacts with formic acid?

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  19. Explain why a blue litmus dipped into a solution of hypochlorous acid ...

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  20. What is etching of glass ?

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