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Write one chemical reaction to show that...

Write one chemical reaction to show that conc. `H_(2)SO_(4)` can act as an oxidising agent.

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Hot concentrated sulphuric acid oxidises carbon to `CO_(2)`.
`C + 2H_(2)SO_(4) (conc.) overset(Delta)rarr CO_(2)+2SO_(2) + 2H_(2)O`
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  4. Sulphuric acid is a dehydrating agent. Give one example.

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  7. Both O(2) and F(2) stabilize high oxidation states but the ability of ...

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  8. Halogens are highly reactive ? Explain.

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  9. Which of the following exist as diatomic molecules?

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  10. Name the halogen with lowest ionization energy.

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  11. Fluorine is the most reactive of all four common halogens.

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  12. Most of the reactions of fluorine are exothermic. Give reasons.

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  13. Give one chemical method for the preparation of flourine.

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  16. Write a balanced equation for the reaction of Cl(2) with cold and dilu...

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  17. What happens when chlorine gas is passed through a hot concentrated so...

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  18. What happens when iodine reacts with sodium thiosulphate.

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