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Group 16 elements are called chalcogens?...

Group 16 elements are called chalcogens? Why?

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Chalcogens means reforming. Many metals are found as oxides and sulphides, and a few metals as selenides and tellurides. Hence group 16 elements are called Chalcogens.
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V PUBLICATION-The p-BLOCK ELEMENTS-QUESTION BANK
  1. Which property is made use of in separating red phosphorus from white ...

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  2. Which is more stable PCl3 or PCl5 Why?

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  3. Group 16 elements are called chalcogens? Why?

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  4. Which has higher value for 1st ionisation enthalpy - oxygen or nitrog...

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  5. Group 16 elements have higher values of electronegativity. Why?

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  6. Oxygen is a diatomic gas. Why?

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  7. Suluphur has a strong tendency for catenation than oxygen. Why?

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  8. Hydrocarbons are used as fuels. Why?

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  9. Name the anhydride of sulphurous acid. Why is it called so?

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  10. Sulphuir dioxide 'SO2' is, a reducing agent. Why?

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  11. Hot concentrated sulphuric acid is a strong oxidising agent. Why?

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  12. Fluorine does not show higher positive oxidation states. Why?

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  13. Arrange HF, HCI, HBr and HI in the order of their i dipole moments. ii...

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  14. In presence of moisture, 'C l2' acts as a powerful oxidising agent. Wh...

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  15. Does the hydrolysis of 'XeF6' lead to a redox reaction?

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  16. Explain i) Sulphur vapours, exhibits some paramagnetism ii) ClF, exi...

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  17. Explain i Helium is used in inflating aeroplane tyres? ii. Solubility ...

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  18. In the reaction 'A+2B+H2O gives C+2D. draw the structures of A, B,...

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  19. Element A burns, in nitrogen to give an ionic compound B. The compound...

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  20. An orange solid. 'X' on heating givés a green rešidue 'Y', water vapou...

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