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If 1 kg of water contains 12 mg of magne...

If 1 kg of water contains 12 mg of magnesium sulphate its degree of hardness is

A

50 ppm

B

60 ppm

C

12 ppm

D

10 ppm

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-OBJECTIVE EXERCISE - 2B
  1. The physical constant which is less for water than for heavy water is

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  2. The temperature of heavy water is increased from 4^@C to 14^@C . Then ...

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  3. If 1 kg of water contains 12 mg of magnesium sulphate its degree of ha...

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  4. Assertion (A) : Heavy water is used as moderator in nuclear reactors. ...

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  5. Two samples of water A and B having concentration 16.2 pp m of Ca(HCO...

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  6. O2^(2-) is the symbol of the ion

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  7. H2O2 is obtained by adding dil H2SO4 to

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  8. In the preparation of H2O2 from BaO2 , phosphoric acid is preferred t...

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  9. In auto oxidation preparation of H(2)O(2) the oxidizing agent is

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  10. Destabiliser of hydrogen peroxide is

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  11. In H2O2 the degree of hydrogen bonding is

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  12. 'H(2)O(2)' ---> 2H + O(2) + 2e The above equation represents the follo...

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  13. As an oxidising agent, hydrogen peroxide reacts rapidly in

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  14. H2O2 + H2O to H2O^(+) toHO2^- This reaction indicates

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  15. H2O2 oxidises the following

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  16. H2O2 turns acidified solution of the following to orange red

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  17. The reagent used in the conversion: Hg to HgO is

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  18. Hydrogen peroxide exhibits oxidising property in reaction with

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  19. When acidified dichromate is treated with H2O2, a blue coloured compou...

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  20. Under the name auricome, H2O2 is used

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