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When a standard solution of NaOH is left...

When a standard solution of `NaOH` is left in air for a few hours:

A

a precipitate will form

B

strength of solution will decrease

C

the strength of solution will increase

D

the concentration of `Na^(+)` ion in solution will remains same

Text Solution

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The correct Answer is:
B
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VK JAISWAL ENGLISH-s-BLOCK ELEMENTS-Level 2
  1. The alkali metals dissolve in liquid NH(3), it is found that:

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  2. Among the nitrate of alkali metals which one can be decomposed to its ...

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  3. When a standard solution of NaOH is left in air for a few hours:

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  4. The addition of Na(2)CO(3), to the aqueous solution of an oxide produc...

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  5. Salt A+SrarrBoverset(BaCl(2))rarr White precipitate A is paramagnetic ...

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  6. Baking powder used to make cake is a mixture of starch, NaHCO(3) and ...

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  7. To an acidified dichromate solution,, a pinch of Na(2)O(2) is added an...

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  8. Which of the following compounds is consumed during the preparation of...

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  9. Which of the following statement is incorrect?

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  10. Nitrogen dioxide cannot be obtained from:

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

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

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

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

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  15. The incorrect order of solubility in water is:

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

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  17. Which one of the following order is correct ?

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

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

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  20. Which of the following is an incorrect statement?

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