Important Questions [26]
- 15000 Litres of Hard Water Was Passed Through a Zeolite Softener. the Exhausted Zeolite Required 120 Litres of Naci Having Stream of 30g/L of Nacl Calculate the Hardness of Water.
- Distinguish Between Temporary and Permanent Hardness of Water.
- Distinguish Between Alkaline and Non Alkaline Hardness?
- Calculate the total hardness in ppm in given water sample.: 50ml of standard hard water , containing 1mg pure CaCO3 per ml consumed 20ml EDTA solution.
- A Zeolite Softener Was Completely Exhausted and Was Generated by Passing 1000 Litres of Nacl .How Many Litres of a Sample of Hardness 500 Ppm Can Be Softened by this Softener ?
- Ten Thousand Litres of Hard Water Was Made Soft with Zeolite. the Exhausted Zeolite Required a Total Amount of 8 Lit of Nacl Solution Containing 150 Gm per Litre for Regeneration. Calculate the
- Write a Note on Ultrafiltration Method for Purification of Water.
- Draw the Diagram for Demineralization Process and Write Suitable Reactions Involved in the Process .What Are the Advantages and Disadvantages of the Method .
- Explain the Principle of Edta Method .
- A Sample of Water Contains Following Impurities : Mg(Hco3)2 =73 Mg/Lit , Mgso4 = 120 Mg/Lit , Cacl2 = 222 Mg/Lit and Ca(No3)2 = 164 Mg/Lit . the Purity of Lime is 74% and Soda is 90% .
- Write a Note on Deccay of Concrete.
- Calculate the Amount of Lime {80 %Purity) and Soda {90% Purity) Required for Softening of 50,000 of Hard Water Whose Chemical Analysis Results Are Given Below.
- Calculate the Amount of Lime (85% Pure) and Soda (95% Pure) Required to Soften One Million Litre of Water Which Contains Caco3 = 12. 5ppml Mgco3 = 8.4ppml
- Calculate the quantity of the pure lime and soda required for softening of 1,00,000 litres of water containing the following impurities in ppm.
- The Hardness of 85000 Litres of Water Sample Was Removed by Passing It Through a Zeolite Softener. the Zeolite Required 2000 Litres of Nacl Solution Containing 190 Mg/Lit of Nacl for Regeneration.
- Explain the Zeolite Method for Softening of Water Giving Suitable Diagram and Reactions. What Are the Limitations of this Method.
- Explain Lon-exchange Process for Softening of Hard Water. What Are Its Advantages and Disadvantages.
- What Are Cation and Anion Exchangers?
- What Are the Advantages of Ion Exchange Process?
- Write a Short Note on Reverse Osmosis .
- Discuss the treatment of water using bleaching powder
- Explain Reverse Osmosis
- Distinguish Between Bod and Cod.
- A 10ml of Sample of Waste Water Was Refluxed with 20ml of Potassium Dichromate Solution and After Refluxing the Excess Unreacted Dichromate Required 36.2ml of 0.
- A 1oml of Sample of Water Was Refluxed with 20ml Potassium Dichromate Solution and After Refluxing the Excess Unreacted Dichromate Required 26.2ml of 0.
- 6ml of Waste Water Was Refluxed with 25ml Ofk2cr20 7 Solution and After Refluxing the Excess Unreacted Dichromate Required 20ml of 0. 1 N Fas Solution. a Blank of Distilled Water on Refluxing with 25
Concepts [11]
- Impurities in Water
- Hardness of Water
- Determination of Hardness of Water by Edta Method and Problems
- Softening of water by Hot and Cold lime Soda method and numerical problems
- Zeolite process and numerical problems
- Ion Exchange Process and Numerical Problems
- Potable water standard as per BIS
- Drinking Water Or Municipal Water
- Bod - Definition and Significance
- COD- Definition and Significance
- Numerical problems related to COD
