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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 will decrese

C

Strength will increse

D

The concentration of `Na^(o+)` ions will remain constant

Text Solution

Verified by Experts

The correct Answer is:
B
since NaOH reacts with atmospheric `CO_(2)`
`2NaOH+CO_(2)rarr Na_(2)CO_(3)+H_(2)O`
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CENGAGE CHEMISTRY-S-BLOCK GROUP 1 - ALKALI METALS-Exercises Single Correct
  1. Which of the following compound is used in gun powder ?

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  2. Which of the following compounds is/are not soluble in water?

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

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  4. In the following sequence of recation, identify the compounds (A), (B)...

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  6. The carbonate that will not decompose on heating is

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  8. What is the reaction occuring at the anode in Down's process for the e...

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  9. shine at freshly cut sodium is because of

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  10. The solubility of alkali metal hydroxides follows the order:

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  11. The magnetic moment of KO(2) at room temperature is ---------- BM.

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  12. sodium peroxide which is a yellow solid, when exposed to air becomes w...

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  13. among the alkali metals caesium is the most reactive because

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  14. Sodium hydride (NaH) when dissolved in water, produces

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  15. The correct order of stability for the following superoxides is

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  16. for which one of the following minerals, the composition gives is inco...

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  17. In the case of alkali metals, the covalent character decreases in the ...

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  18. Which of the following oxides is not expected to react with sodium hyd...

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  19. The reaction that takes place when CI(2) gas is passed through conc Na...

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  20. When sodium is added in scanty water, it cathes fire. In this process ...

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