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11th CBSE
IMPORTANT
Earn 100

Water softening by Clark's process uses.

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Important Questions on Hydrogen

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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q II
Pure water can be obtained from sea water by
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q II
In the calgon process of softening of water, which of the following is used?
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q II
The reagent commonly used to determine hardness of water titrimetrically is
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q II
The hardness of water sample containing 0.002 mole of magnesium sulphate dissolved in a litre of water is expressed as.
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q II
The molecular formula of a commercial resin used for exchanging ions in water softening is C8H7SO3Na (Mol. wt. of 206). What would be the maximum uptake of Ca2+ ions by the resin when expressed in mole per gram resin?
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q III
Which of the following compounds is a peroxide?
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q III
How many peroxy linkages are present in CrO5?
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11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q III
The inorganic compound obtained by the auto-oxidation of 2-alkylanthraquinol is