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Very pure hydrogen (99.9%) can be made b...

Very pure hydrogen (99.9%) can be made by which of the following processes ?

A

Reaction of salt like hydrides with water

B

Reaction of methane with steam

C

Mixing natural hydrocarbons of high molecular weight

D

Electrolysis of water

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The correct Answer is:
D
By the electrolysis of water ultra pure hydrogen obtained at cathode.
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ALLEN-HYDROGEN-EXERCISE-4
  1. When treated with nitric acid which of the following liberates hydroge...

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  2. When CH(3)OH reacts with glucose two types of glucoside are obtained. ...

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  3. In aqueous solution, H(2) will not reduce :

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  4. Which of the following statements is incorrect ?

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  5. Which one of the following removes temporary hardness of water ?

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  6. 0.01 molal aqueous solution of K(3)[Fe(CN)(6)] freezes at -0.062^(@)C....

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  7. Which can't displace hydrogen from the compounds?

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  8. Speed of decomposition of H(2)O(2) is reduced by :

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  9. Heavy water is used in nuclear reactors as

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  10. Nascent hydrogen consists of

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  11. Temperature of maximum density in H(2)O and D(2)O respectivelt are

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  12. Match List I with List II and select the correct answer using the code...

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  13. Polyphosphates are used as water softening agents because they

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  14. Which of the following could act as a propellant for rockets ?

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  15. What is formed when calcium carbide reacts with heavy water?

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  16. H(2)O(2) acts as an oxidising agent in

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  17. Which one of the following compounds gives methane on treatement with ...

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  18. Shape of O(2)F(2) is similar to that of

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  19. Some statements about water are given below: (a) Heavy water is used...

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  20. Very pure hydrogen (99.9%) can be made by which of the following proce...

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