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Two samples of water A and B having conc...

Two samples of water A and B having concentration 16.2 pp m of `Ca(HCO_(3))_(2)` and 13.6 pp m of `CaCl_(2)` respectively. Then

A

Hardness is more in 'B' sample than in 'A'

B

Hardness is more in 'A' sample than in 'B'

C

Hardness is same in both cases

D

Hardness in sample 'B' is twice that of the sample 'A'

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The correct Answer is:
A
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AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-OBJECTIVE EXERCISE - 2B
  1. If 1 kg of water contains 12 mg of magnesium sulphate its degree of ha...

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

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

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

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  5. H2O2 is obtained by adding dil H2SO4 to

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

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

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  8. Destabiliser of hydrogen peroxide is

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  9. In H2O2 the degree of hydrogen bonding is

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

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

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

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  13. H2O2 oxidises the following

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

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

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  16. Hydrogen peroxide exhibits oxidising property in reaction with

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

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  18. Under the name auricome, H2O2 is used

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  19. Addition of water to the following compound gives H2O2

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  20. Which is not a property of H2O2

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