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Which of the following ions will caus...

Which of the following ions will cause hardness in water sample?

A

`Ca^(2+)`

B

`Na(+)`

C

`K^+`

D

`Cl^(-)`

Text Solution

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The correct Answer is:
A
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MARVEL PUBLICATION-SOLID STATE -Multiple choice questions
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  2. The reagent commonly used to determine hardness of water titrimetrical...

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  3. Which of the following ions will cause hardness in water sample?

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  4. Which of the following statement(s) is/are correct in the case of he...

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  5. The permanent hardness of water is due to the presence of

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  6. Which of the following is used as a moderator in nuclear reactors ?

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  7. The reagent(s) used for softening the temporary hardness of water is (...

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  8. Polyphosphates are used as water softening agents because they

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  9. Which of the following molecules have practically the same mass ?

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  10. Heavy water is

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  11. The degree of hardness of water is usually expressed in terms of

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  12. Explain why calcuim ion makes water hard, but sodium ion does not.

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  13. When zeolite (hydrated sodium aluminium silicate) is treated with hard...

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  14. The compound which cannot be oxidesed by H2O2 is

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  15. When hydrogen peroxide is oxidised by a suitable oxidant one of the pr...

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  16. Industrial preparation of H2O2 , involves auto oxidation of

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  17. H(2)O(2) is always stored in black bottles because

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  18. The compound useful for restoring aerobic conditions to sewage waste i...

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  19. Hydrogen peroxide is not stored in glass bottle as

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  20. Reaction of ethylene with H2O2 gives

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