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A water sample contains 1 millimol of Mg...

A water sample contains 1 millimol of `Mg^(2+)` ion per litre . Calculate the hardness of the water sample in ppm unit .

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CHHAYA PUBLICATION-PREVIOUS YEAR QUESTION PAPER 2016-WBCHSE 2016 SECTION II ( GROUP C)
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  10. What is the oxidation number of N atom is NaN(3) molecule ?

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  11. Balance the chemical equation by ion electron method : MnO(4)^(1-) + (...

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  12. A water sample contains 1 millimol of Mg^(2+) ion per litre . Calculat...

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  13. What do you understand by 'Trailing of Mercury' ?

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  14. Why do most of the lithium salts are present as hydrated one ?

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  15. Which of the alkaline earth metal hydroxides are amphoteric in nature ...

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  16. What is hydrolith ?

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  17. Why does BF(3) behave as Lewis acid ?

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  18. Write with equation what happens when ? Water is added to calcium carb...

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  19. By which property the stability of (CH(3))(3) C^(+) ion could be expla...

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