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Why ionic or salt-like hydrides on elect...

Why ionic or salt-like hydrides on electrolysis liberates dihydrogen at anode?

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Give an example and formula of a compound which on electrolysis liberates dihydrogen at anode.

Write down the name and formula of a compound which on electrolysis produces dihydrogen at anode.

The compound which on electrolysis in its molten or liquid state liberates hydrogen at anode is -

Name a metal and a non-metal which on reaction with alkali liberates dihydrogen and write the corresponding chemical reactions.

Why is salt-bridge used?

Binary compounds of various elements with hydrogen where hydrogen exhibit an oxidation number of (-1) are called binary hydrides. Nature of hydride obtained depends upon electronegativity of the element and hence on the type of bond formed Hydrides are mainly of three classes Ionic, saline or salt like hydrides. Covalent or Molecular hydrides. Metallic or interstitial hydrides. Which of the following form metallic hydrides ?

Binary compounds of various elements with hydrogen where hydrogen exhibit an oxidation number of (-1) are called binary hydrides. Nature of hydride obtained depends upon electronegativity of the element and hence on the type of bond formed Hydrides are mainly of three classes Ionic, saline or salt like hydrides. Covalent or Molecular hydrides. Metallic or interstitial hydrides. Which of the following is formed when LiH react with SO2?

Explain why the ionic character of the hydrides of alkali metals increases down the group.

Why acidulated water is taken for electrolysis of water?

CHHAYA PUBLICATION-HYDROGEN-WARM UP EXERCISE
  1. Mention four important uses of dihydrogen.

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  2. What do you mean by hydrides? Give examples along with their general f...

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  3. Why ionic or salt-like hydrides on electrolysis liberates dihydrogen a...

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  4. What characteristics do you expect from an electrondeficient and an el...

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  5. Why the boiling point of HF is higher than that of other hydrogen hali...

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  6. Which type of hydrides can be used as hydrogen storage media?

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  7. How can you separate H(2) or D(2) from He?

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  8. Why ionic or salt-like hydrides are used to dry organic solvents?

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  9. Although the oxygen atom in water is sp^(3) hybridised, the value of H...

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  10. Explain why a molecule of water is polar in nature.

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  11. Explain why the freezing point, boiling point, heat of fusion and heat...

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  12. Explain why ice floats on water.

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  13. At which temperature the density of water is maximum and why?

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  14. Many electrovalent or ionic compounds and same non-electrolytes such a...

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  15. Water is very stable compound - why ?

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  16. Explain why water is called 'universal solvent?

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  17. Explain why water is called an 'amphiprotic solvent'. Establish this g...

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  18. What do you understand by'self-ionisation' or 'autoprotolysis' of wate...

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  19. Give examples of two reactions one in which water acts as an oxidising...

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  20. Which type of compounds undergo hydrolysis? Give examples.

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