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Explain the following observation : Heli...

Explain the following observation : Helium forms no real chemical compound.

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MODERN PUBLICATION-p-BLOCK ELEMENTS-EXERCISE
  1. Why H2S is more Acidic than H2O ?

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  2. Explain the following observation : Fluorine does not exhibit any posi...

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  3. Explain the following observation : Helium forms no real chemical comp...

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  4. Account for the following: Interhalogens are more reactive than pure h...

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  5. Why is N2 less reactive at room temperature ?

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  6. Account for the following: Reducing character decreases from NH3 to Bi...

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  7. Draw the structure of the following: H4P2O7 (Pyrophosphoric acid)

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  8. Draw the structures of the following molecule : XeF4

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  9. What happens when white phosphorus is heated with concentrated NaOH so...

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  10. Name the noble gas which has least boiling Point .

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  11. Although electron gain enthalpy of fluorine is less negative as compar...

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  12. What happens when H3PO3 is heated? Write the reactions involved .

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  13. Complete the equation: PbS + O3 rarr

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  14. For the reaction N(2)(g) + 3H(2)(g) hArr 2NH(3)(g), what is the effect...

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  15. Nitrogen fertilizers are commonly used to promote the growth of plants...

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  16. Express 2022 in roman numbers.

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  17. Express 2023 in roman numbers.

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  18. How are the supersonic jet aeroplanes responsible for the depletion of...

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  19. The mixture of gases that forms gobar gas are-

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  20. Complete the following reaction: IO3^(-)+ I^(-)+ H^(+) rarr

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