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Why helium does not form any compound?...

Why helium does not form any compound?

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CHHAYA PUBLICATION-P-BLOCK ELEMENTS-SLOVED WBCHSE SCANNER
  1. Which one between N(2)O and NO(2) molecules is more polar? Explain.

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  2. What is the hybridization state of xenon in XeOF(4). What is the shape...

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  3. Which of the following gases has odour but no colour-

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  4. First ionisation enthalpies of group-15 elements are, in general, grea...

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  5. State with balanced chemical equation what happens when sulphur trioxi...

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  6. Explain why moist chlorine can bleach dry coloured articles but dry ch...

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  7. Write down the structure of SO(2) and state with reason whether it is ...

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  8. Write down the name and formula of the stable paramagnetic allotrope a...

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  9. What is the formula of the oxide formed on burning potassium in oxygen...

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  10. How will you distinguish chemically between HN(3) and NH(3) ?

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  11. Write down the balanced chemical equation for the reaction of H(2)S wi...

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  12. How does PCl(3) undergo hydrolysis?

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  13. Write with balanced chemical equation, what happens when chlorine gas ...

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  14. Write the thermal stability order of hydrogen halides.

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  15. Which of the following is required to liberate bromine from aqueous so...

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  16. Write with balanced chemical equation, what happens when chlorine gas ...

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  17. Write with balanced chemical equation, what happens when white phospho...

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  18. Why helium does not form any compound?

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  19. Give an example of mixed oxide. Why is it called mixed oxide?

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  20. Draw the structure of H(2)SO(3)?

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