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A compoud which can be used in space veh...

A compoud which can be used in space vehicles both to absorb `CO_(2)` and liberate `O_(2)` is:

A

`NaOH`

B

`Na_(2)O`

C

`Na_(2)O_(2)`

D

`CaO + NaOH`

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The correct Answer is:
C
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ALLEN-S-BLOCK ELEMENTS -EXERCISE
  1. CO(2) gas along with solid (Y) is obtained when sodium salt (X) is hea...

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  2. Magnesium oxide can be obtained by heating :-

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  3. A compoud which can be used in space vehicles both to absorb CO(2) and...

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  4. Nitrate is converted into metal oxide on heating. This metal is:

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  5. There is loss in weight when mixture of Li(2)CO(3) and Na(2)CO(3).10H(...

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  6. Which of the following metal forms M(2)O(2) (peroxide)?

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  7. Which is main constitutent of egg-shell?

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  8. Baking powder contains:

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  9. A overset(Delta)rarrB (oxide) + CO(2) B + H(2)O rarr C C+ CO(2) ra...

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  10. A overset(Delta)rarrB (oxide) + CO(2) B + H(2)O rarr C C+ CO(2) ra...

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  11. A overset(Delta)rarrB (oxide) + CO(2) B + H(2)O rarr C C+ CO(2) ra...

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  12. A overset(Delta)rarrB (oxide) + CO(2) B + H(2)O rarr C C+ CO(2) ra...

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  13. Na(2)[Be(OH)(4)] is formed when:

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  14. Which is/are true statement(s) when metal carbides react with H(2)O?

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  15. Beryllium is placed above magnesium in the II group. Beryllium dust, t...

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  16. Potassium is kept in

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  17. Which of the following is not present in cement ?

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  18. A wire of an alkaline earth metal X, burnt in air and dipped in water,...

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  19. Which of the following statement is correct for s-block elements:

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  20. One element which is used in flash light in photography, when heated w...

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