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When hydrogen gas is bubbled through aci...

When hydrogen gas is bubbled through acidified `KMnO_(4)`, colour is not discharged. The colour of the acidified `KMnO_(4)` solution can be discharged by

A

heating the solution

B

cooling the solution

C

adding some zinc pieces

D

adding some copper pieces.

Text Solution

Verified by Experts

The correct Answer is:
C
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ICSE-HYDROGEN-OBJECTIVE (MULTIPLE CHOICE) TYPE QUESTIONS
  1. Which of the following is a true structure of H(2)O(2) in solid phase?

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

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

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  4. In the periodic table, hydrogen should be

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

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  6. Which of the following isotopes of hydrogen is radioactive?

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  7. Which of the following is (are) molecular hydride(s)

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  8. Which of the following hydrides are non-stoichiometric?

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  9. In which of the following reactions does water act as a reducing agent...

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  10. In CuSO(4) · 5H(2)O

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  11. The exhausted permutit can be regenerated by percolating a

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  12. Soft water obtained on ion-exchange treatment

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  13. 100% pure H(2)O(2) from a 90% sample can be obtained by

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  14. In the liquid state, water molecules are held together by

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  15. An inorganic substance liberates O(2) when heated, turns an acidified ...

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  16. The method used to remove temporary hardness of water is:

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  17. The temporary hardness of a water sample is due to compound X. Boiling...

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  18. 100mL of a water sample contains 0.81g of calcium bicarbonate and 0.73...

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  19. The strength of H(2)O(2) is expressed in several ways like molarity, n...

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  20. The maximum prescribed concentration of copper in drinking water is:

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