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The temporary hardness of water is due t...

The temporary hardness of water is due to the presence of

A

`MgSO_(4)`

B

`Mg(HCO_(3))_(2)`

C

`CaCl_(2)`

D

`CaCO_(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
Temperary hardness of water is due to the presence of `Ca(HCO_(3))_(2)andMg(HCO_(3))_(2)` in water.
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PHYSICS WALLAH-HYDROGEN-LEVEL-2
  1. Which of the following represents a pair of covalent hydrides?

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  2. Which of the following metals adsorbs hydrogen ?

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  3. The temporary hardness of water is due to the presence of

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  4. Temporary hardness may be removed from water adding.

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  5. Heavy water is used in nuclear reactors as:

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  6. One of the following is an incorrect statement, point it out.

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  7. Water can be tested by:

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  8. In acidic medium , H(2)O(2) acts as a reducing agent in its reaction w...

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  9. In acidic medium , H(2)O(2) acts as a reducing agent in its reaction w...

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  10. Which of the following compounds turns white on treatment with H(2)O(2...

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  11. A dilute solution of H(2)O(2) is labelled as 20 volume . Its percentag...

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  12. The normality of 30 volume H(2)O(2) solution is :

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  13. On an industrial scale. H(2)O(2) is prepared by auto-oxidation of:

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  14. Which of the following cannot be oxidised by H(2)O(2) ?

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  15. H(2)O(2) is used as :

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  16. Hydrogen molecule differs from chlorine molecule in the following resp...

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  17. Which one of the following properties shows that hydrogen resembles al...

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  18. Dihydrogen has :

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  19. The first ionization energy for in kJ "mol"^(-1) H, Li, F. Na has one ...

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  20. Reaction between following pairs will produce hydrogen except :

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