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AAKASH SERIES-HYDROGEN AND ITS COMPOUNDS-SUBJECTIVE EXERCISE -2 (SHORT ANSWER TYPE QUESTIONS)
- What is meant by hardness of water? How many types are there?
02:43
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- Describe permutit process for removal of hardness.
05:27
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- Which salts are responsible for temporary hardness? Explain the remova...
03:12
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- How is deionised water prepared? Explain the principle with equations.
03:07
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- Explain the disadvantages of hard water.
02:43
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- Describe the preparation of heavy water by multi-stage electrolysis pr...
06:48
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- What is deuterolysis? Write the reactions of D2O with Mg3 N2, Ca3P2, A...
03:40
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- Write the following physical quantity values of heavy water : Freezing...
01:36
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- Explain the reaction of heavy water with Na, Na2O, N2O5 and Al4C3
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- Give four uses of heavy water.
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- What is the difference between hydrolysis and hydration. Give examples...
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- Why D2O cannot be used as drinking water ?
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- Calculate the weight of ordinary water that contains Avogadro number o...
02:53
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- A hard water sample contains calcium chloride only degree of hardness ...
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- One kilogram of hard water sample contains 5 xx 10^(-4) mol of magnes...
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- Degree of hardness of a water sample is 100ppm. 50 ml of standard soap...
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- 10 kg of a sample of water contains 6 g of magnesium sulphate. Calcula...
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- 50 ml of water has degree of hardness 160ppm. If a standard soap solut...
03:20
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- One litre water has 81 mg of calcium bicarbonate and 95 mg of magnesiu...
05:11
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- A hard water sample contains magnesium bicarbonate only. 100 ml of the...
03:26
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