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Hydrogen is evolved by the action of col...

Hydrogen is evolved by the action of cold dil. `HNO_3`, on

A

Fe

B

Mn

C

`Cu^(+)`

D

AL

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The correct Answer is:
B
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ICSE-HYDROGEN-OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS
  1. Hydrogen is evolved by the action of cold dil. HNO3, on

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  2. Give reasons : Hydrogen is not prepared by reacting conc H(2)SO(4) w...

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  3. When the same amount of zinc is treated separately with excess of sulp...

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  4. Which of the following metals absorbs hydrogen ?

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  5. The composition of the nucleus of deutrium is

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  6. Hardness of water is due to (a)Ca^(2+) and K^(+) (b)Mg^(2+) and K^...

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  7. To test whether a given clear liquid is water, of the following method...

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  8. Water is said to be permanently hard when it contains

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  9. Zeolite, which shows ion exchange ability

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  10. Calgon used as a water softner is

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  11. H(2)O(2) is commonly ·prepared in laboratory by the reaction of

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  12. Which of the following statements is incorrect?

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  13. The reaction H(2)S+H(2)O(2)toS+2H(2)Omanifests

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  14. The compound that can work both as an oxidising and a reducing agent i...

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  15. An aqueous solution of hydrogen peroxide is (a)Alkaline (b)Neutral ...

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  16. Which of the following is a true structure of H(2)O(2) in solid phase?

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  17. Commercial 10 volume H(2)O(2) is a solution with a strength approximat...

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  18. The volume strenght of 1.5 NH(2)O(2) solution is

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  19. In the periodic table, hydrogen should be

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  20. When hydrogen gas is bubbled through acidified KMnO(4), colour is not ...

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