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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 of EDTA

C

Sodium citrate

D

Sodium thiosulphate

Text Solution

Verified by Experts

The correct Answer is:
B
It forms calcium and magnesium complex with EDTA salt.
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A2Z-S BLOCK ELEMENTS ( GROUP 13 - 14)-Compound Of Alkali Metals
  1. Sodium nitrate decomposes above-800^(@)C to give

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  2. When NaCl is dissolved in water the sodium ion becomes

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  3. The reagent commonly used to determine hardness of water titrimetrical...

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  4. A and B are two salts. A with dilute HCl and B with con. H(2)SO(4) rea...

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  5. On heating sodium carbonate, and CO(2) are formed.

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  6. Which of the following is known as soda ash?

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  7. In Down's Process, for manufacture of sodium metals, CaCl(2) is added ...

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  8. The pair of compounds which can exist together in aqueous solution is

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  9. What would your observe if excess of dilute NaOH solution is added and...

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  10. Sodium dichormate on heating with coke yields :

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  11. Sodium thiosulphate, Na(2)S(2)O(3).5H(2)O is used in photography to

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  12. Which one out of the NaOH and KOH is a better absorber of CO(2) ?

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  13. In which of the following precesses, fused sodium hydroxide is electro...

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  14. Which of the following is neither deliquescent nor efflorscent and is ...

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  15. In the Castner's process for the extration of sodium, the anode is mad...

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  16. In Down's cell (for production of sodium), graphite anode is used beca...

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  17. At higher temperature sodium metal reacts with alumina to give a sodiu...

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  18. Sodium carbonate can be manufactured by Solvay's process but potassium...

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  19. What products are formed during the electrolysis of a of a concentrat...

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  20. Causticisation process is used for the preparation of

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