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Washing soda on standing in air efflores...

Washing soda on standing in air effloresced. How many water molecules are lost ?

A

8

B

1

C

9

D

5

Text Solution

Verified by Experts

The correct Answer is:
C
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NARAYNA-S-BLOCK ELEMENTS-LEVEL-III
  1. The false statement among the following is:

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  2. When Na2CO(3) is added to an aqueous solution of CuSO(4)

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  3. K(2)CS(3) is called potassium -----------.

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  4. Which of the following does not exist?

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

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

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  7. When sodium is added in scanty water, it catches fire. In this process...

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  8. Which of the following compounds on reaction with Na(2)O(2) gives yell...

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  9. Ease with which hydrides are formed form Li to Cs:

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  10. Na(2)CO(3^.)10H(2)O is an efflorescent salt. Under atmospheric conditi...

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  11. Li(2)SO(4) is not isomorphous with sodium sulphate:

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  12. Prefix 'alkali' for alkali metals denotes:

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  13. Na(2)CO(3)+Fe(2)O(3)rarr A+CO(2), what is A in the reaction ?

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  14. Trona is a natural hydrated mixed compound of sodium found in nature. ...

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  15. Washing soda on standing in air effloresced. How many water molecules ...

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  16. Calculate heat of solution of NaCI form the following data: Hydratio...

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  17. On heating 8 moles each of Li(2)CO(3) and K(2)CO(3), how many moles of...

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  18. How many moles of ammonia are produced, on hydrolysis of five moles of...

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  19. Rede the following statements and choose true (T) or false (F). (i) ...

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  20. The pair(s) of reagents that yield paramagnetic species is/are

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