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The reagent commonly used to determine h...

The reagent commonly used to determine hardness of water titrimetrically is `:`

A

oxalic acid

B

disodium salt of `EDTA`

C

sodium citrate

D

sodium thiosulphate

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The correct Answer is:
b
B
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  2. Which one of the following removes temporary harness of water ?

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  5. Lead pipes are not used for carrying drinking water because

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  6. Select the correct statement for heavy water.

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  7. Alkali metal hydrides react with water to give

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  8. Which of the following is not true ?

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  9. Chemical (X) is used for water softening to remove temporary hardness....

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  10. Heavy water is used in nuclear reactors as

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  11. Whivh of the following is not a hard water ?

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  12. The molarity of pure water at 4^(@)C is

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  13. Water is said to be permanently hard when it contains :

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  14. When temporary hard water containing Mg(HCO(3))(2) is boiled, the ppt....

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  15. Permanent hardness due to Mg^(2+) ions is best removed by

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  16. Heavy wateris compound of :

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  17. Whichh of the following is correct about heavy water ?

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  18. Which of the following statements do not define the characteristic pro...

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  19. Which of the followign is used as a moderator in nuclear reactors ?

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  20. By adding which of the following process, permanent hardness of water ...

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