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When HCI reacts with finely powdered iro...

When HCI reacts with finely powdered iron, it forms ferrous chloride and not ferric chloride.Why?

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Complete the following reaction : NH3(excess) + Cl2 rarr

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  2. How do you account for the reducing behaviour of H3P02 on the basis of...

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  3. When HCI reacts with finely powdered iron, it forms ferrous chloride a...

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  4. What are interhalogen compounds ? Give example.

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  5. What are the interhalogen compounds ? Why are these more reactive than...

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  6. Draw structure of HClO4.

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  7. Why noble gases have very high values of ionisation enthalpies?

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  8. Why are halogens strong oxidising agents?

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  9. (i) why are halogens strong oxidising agents ? (ii) Why oxygen shows...

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  10. Give the preparation, hybridisation and structure of XeF4 (XenonTetraf...

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  11. What is the oxidation number of central atom [Cu Br2 (H2O) (NH3) ]

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  12. Draw the structure of H3PO3.

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  13. Why conc. sulphuric acid is always diluted by adding sulphuric acid to...

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  14. Compare the acidic strength of HClO4, HClO3, HClO2, HClO. Give reasons...

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  15. Name the Scientist who prepared the first compound of noble gases.

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  16. Why are halogens coloured ?

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  17. What is the oxidation number of central atom K3[Al (C2O4)3]

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  18. Why does concentrated sulphuric acid has high boiling point?

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  19. Fluorine exhibits only - 1 oxidation state whereas other halogens exhi...

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  20. Molecular nitrogen N2 is not particularly reactive. Explain

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