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Oxygen is not evolved when:...

Oxygen is not evolved when:

A

ZnO is heated with NaOH

B

`NH_(4)NO_(3)` is heated

C

`Na_(2)O_(2)` reacts with water

D

`KClO_(3)` is heated

Text Solution

Verified by Experts

The correct Answer is:
A, B
`O_(2)` is evolved when `2Na_(2)O_(2)+2H_(2)O to 4NaOH +O_(2), 2KClO_(3) overset(Delta)to 2KCl +3O_(2)`
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AAKASH SERIES-VIA GROUP ELEMENTS-LEVEL-II LECTURE SHEET (EXERCISE-I Single & One or More than One Correct Answers)
  1. In the reaction PbO(2)+SO(2) to PbSO(4)

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  2. A gas X turns line water milky. The milkiness disappears if excess of ...

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  3. In which of the following reactions, SO(2) acts as an oxidising agent?

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  4. Which of the following are amphoteric ?

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  5. Which of the following statement(s) is (are) correct ?

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  6. Which of the following statement(s) is (are) true for SO(2) ?

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  7. Sulphuric acid can be used as:

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  8. Which of the following ions give ppt. with BaCl(2) solution?

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  9. Which of the following gases can be collected by downward displacemen...

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  10. Oxygen is not evolved when:

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  11. In the reaction H(2)S+O(3) to ………. the products are:

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  12. Which reagent does not give oxygen as one of the product during oxidat...

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  13. Which of the following react with dilute H(2)SO(4) to form H(2).

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  14. The compound which gives carbon with conc. H(2)SO(4)

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  15. The following reactions represents the dehydrating property of H(2)SO(...

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  16. Spring's reaction is / are

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  17. Certain reactions regarding H(2)SO(4) are given H(2)SO(4)+NaOH to N...

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  18. Hypo acts as a fixing agent. The correct statements are

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  19. Which of the following statements regarding sulphur is incorrect ?

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  20. Sulphur trioxide gas when dissolved in H(2)SO(4) the product obtained ...

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