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Which of following cannot be used for th...

Which of following cannot be used for the preparation of `H_(2)` ?

A

`Zn+HCl (dil.) to`

B

`NaH+H_(2)Oto`

C

`Zn+HNO_(3)(dil.)to`

D

`HCOONaoverset(Delta)to`

Text Solution

Verified by Experts

The correct Answer is:
C
`Zn+2HCl(dil.)toZnCl_(2)+H_(2)`
`NaH+H_(2)OtoNaOH+H_(2)`
`2HCOONaoverset(Delta)tounderset("sodium oxalate")(Na_(2)C_(2)O_(4)+H_(2))` M
`4Zn+10HN_(3)(dil.)to4Zn(NO_(3))_(2)+N_(2)O+5H_(2)O`
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DINESH PUBLICATION-HYDROGEN-BRAIN TEASERS - 16
  1. Temperature of maximum density in H(2)O and D(2)O respectivelt are

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  2. Non-metallic oxides dissolve in water to from

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  3. Ordinary water is not used as a moderator in nuclear reactors because

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  4. Which of the following can effectively remove all types of hardness of...

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  5. Hydrogen behaves as a metal

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  6. With the decrease in temperature, the proportion of which allotropic f...

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  7. A sample of water contains sodium chlorde. It is

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  8. Brackish water mostly contains

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  9. pH of neutral water at room temperature is nearly

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  10. Solubility of calcium sulphate in water

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  11. The volumn strength of perhydrol is

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  12. The solubility of an ionic compound is compared in heavy and simple wa...

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  13. Which of the following cannot be oxidised by H(2)O(2) ?

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  14. Which subtance cannot be reduced by H(2)O(2)

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  15. Hydrogen can be prepared by the action of dil. H(2)SO(4) on

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  16. The element whose hydride contains maximum number of hydrogen per atom...

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  17. Indicator type silica gel used as a dehumidifier contains

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  18. To an aqueous solution of AgNO(3) some NaOH(aq) is added, till a brown...

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  19. Atomic hydrogen reacts with oxygen to give

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  20. Which of following cannot be used for the preparation of H(2) ?

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