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Sodium peroxide which is a yellow solid,...

Sodium peroxide which is a yellow solid, when exposed to air becomes white due to the formation of:

A

`H_(2)O`

B

`Na_(2)O`

C

`Na_(2)O` and `O_(3)`

D

`NaOH` and `Na_2CO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Sodium peroxide i.e. `Na_(2)O_(2)` is a yellow solid which becomes white when it is exposed to air because `Na_(2)O_(2)` forms NaOH with moisture and with `CO_(2)` it forms `Na_(2)CO_(3)`.
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ERRORLESS -S AND P BLOCK ELEMENTS-Ordinary thinking (Alkali metals)
  1. The most stable compound is

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  2. In the Castner's process for the extration of sodium, the anode is mad...

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  3. Sodium peroxide which is a yellow solid, when exposed to air becomes w...

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  4. The metal that produces red violet colour in the non - luminous flame ...

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  5. Which one of the following on hydrolysis, gives the corresponding meta...

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  6. In the graph below, the one which present an alkali metal with the hig...

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  7. The alkali metal halide that is soluble in pyridine is

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  8. For alkali metals, which one of the following trends is incorrect ?

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  9. Choose the incorrect statement in the following

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  10. Which of the following alkali metals has the biggest tendency of the h...

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  11. Pyrolusite is

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  12. An inorganic compound first metls then resolidifies and then liberates...

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  13. Which of the following does not participate in the solvay's process f...

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  14. Sodium metal is extracted by

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  15. Which physical property in the alkali metal group increases with atomi...

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  16. Sodium carbonate reacts with SO(2) in aqueous medium to give

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  17. When CO is passed over solid NaOH heated to 200^(@)C , it forms

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  18. As compared to potassium ,sodium has .

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  19. Na(2)CO(3) can be manufactured by Solva's process but K(2)CO(3) cannot...

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  20. Which of the following is the smallest cation?

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