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What is chemical harmonium?...

What is chemical harmonium?

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ICSE-HYDROGEN-SHORT ANSWER TYPE QUESTIONS
  1. What happens when acidulated water is subjected to electrolysis ?

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  2. How does dihydrogen react with metals and non-metals ? Give some examp...

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  3. What is chemical harmonium?

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  4. Describe two reducing properties of dihydrogen?

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  5. What is hardening of oils and how is it achieved?

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  6. What happens when sodium is heated in a current of hydrogen

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  7. What happens when di hydrogen reacts with chlorine in the presence ...

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  8. What happens when dihydrogen is passed over heated CuO?

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  9. How would you prepare dihydrogen from water by using a reducing agen...

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  10. How would you prepare dihydrogen from a substance other than water ?

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  11. How would you prepare very pure dihydrogen in the laboratory?

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  12. How would you prepare heavy hydrogen in the laboratory ?

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  13. What are hydrides and how are they classified?

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  14. What are saline hydrides and how are they prepared? Give some examples...

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  15. Mention the important properties of saline hydrides

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  16. Why is UH least reactive of all the saline hydrides?

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  17. How do saline hydrides react with water? Give some examples.

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  18. What are molecular hydrides and by which type of elements are they for...

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  19. What are interstitial hydrides and how are they prepared?

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  20. Discuss the important properties of interstitial hydrides.

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