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'A'+H(2)O to NaOH: 'A'overset(O(2))under...

`'A'+H_(2)O to NaOH: 'A'overset(O_(2))underset(400^(@)C)(to)Boverset(H_(2)O)underset(at 25^(@)C)(to)NaOH+O_(2)`
B is used for oxygenating in submarine A and are:

A

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

B

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

C

`Na_(2)O_(2) and O_(2)`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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VK JAISWAL ENGLISH-s-BLOCK ELEMENTS-Level 2
  1. Which of the following statement is incorrect?

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  2. Nitrogen dioxide cannot be obtained from:

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  3. 'A'+H(2)O to NaOH: 'A'overset(O(2))underset(400^(@)C)(to)Boverset(H(2)...

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  4. CaCl(2) is preferred over NaCl for clearing ice on roads particularly ...

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  5. A metal which does not react with nitrogen is :

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  6. Which metal bicarbonates does not exist in solid state? (i)LiHCO(3) ...

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  7. The incorrect order of solubility in water is:

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  8. Which metal bicarbonates does not exist in solid state? (i)LiHCO(3) ...

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  9. Which one of the following order is correct ?

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  10. Metal M+"air" overset(delta)(to)Aoverset(H(2)O)(to)Boverset(HCl)(to) W...

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  11. X and Y are two metals. When burnt in air, X forms only oxide while Y ...

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  12. Which of the following is an incorrect statement?

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  13. Which of the following statement is incorrect?

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  14. Thermal stability of MCO(3) is in order:

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  15. Select incorrect statement about alkaline earth metals:

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  16. In polymeric (BeCl(2))(n), there are:

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  17. A metal is burnt in air and the ash on moistening smells of NH(2).The...

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  18. Which is not obtained when metal carbides react with H(2)O ?

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  19. Choose incorrect statement:

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  20. IIA (alkaline earth metals) and IIB (zinc family) resemble:

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