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Which of the following substance produce...

Which of the following substance produce hardness in water.

A

`CaCO_(3)`

B

`CaCl_(2)`

C

`Na_(2)CO_(3)`

D

`Na_(2)(HCO_(3))_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
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ALLEN-HYDROGEN-EXERCISE-5
  1. Which of the following substance produce hardness in water.

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  2. Assertion : Cu react with HCl & form H(2) gas Reason : Cu lies above...

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  3. Assertion (A) Decomposition of H(2)O(2) is a disproportionation reacti...

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  4. Assertion (A) Hydrogen combines with order elements by losing, gaining...

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  5. Assertion (A) H(2)O(2) is not stored in glass bottles. Reason (R ) ...

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  6. Assertion : Ferricyanide ion oxidises H(2)O(2) to H(2)O. Reason : Ox...

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  7. Assertion (A): The colour of old lead painting can be restored by wash...

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  8. Assertion : Water has a boiling point higher than that of H(2)S. Rea...

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  9. Assertion : H(2)O(2) react with PbS to form PbSO(4). Reason : H(2)O(...

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  10. Assertion : Molar mass of D(2)O is more than than of protium oxide. ...

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  11. Assertion (A) The O-O bond length in H(2)O(2) is shorter than that in ...

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  12. Asseriton : Hard Water is not fit for washing clothes. Reason : It c...

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  13. Assertion : Rate of reaction CD(4)+Cl(2)rarr" Slow "CH(4)+C...

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  14. Assertion : Hydrogen cannot be prepared in laboratory. Reason : Hydr...

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  15. Assertion : Ortho and Para dihydrogen are nuclear spin isomers. Reas...

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  16. Assertion : Saline hydrides are non volatile, non conducting & crystal...

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  17. Assertion : Temporary hardness can be removed by boiling. Reason : O...

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  18. Assertion : Sulphur is oxidised by H(2)O(2) in presence of Fe(III) R...

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