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Write down the main characteristics of d...

Write down the main characteristics of drinking water.

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PATHFINDER-ENVIRONMENTAL CHEMISTRY-QUESTION BANK
  1. What is TLV?

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  2. What is 'Pneumoconiosis?

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  3. Write down the main characteristics of drinking water.

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  4. Mention two harmful effects of photochemical smog?

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  5. How does the ozone layer depletion and a preventive measure that can b...

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  6. What is feron? Mention one of its effect.

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  7. Give examples of a sink of CO and two sinks of CO2

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  8. Dissolved oxygen values of four water samples A, B, C and D are respec...

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  9. Biochemical oxygen demand value of four water samples P, Q, R and S ar...

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  10. Threshold limit value of three pollutant X,Y and Z are respectively 9 ...

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  11. DO value of a water sample is 6 ppm. Calculate the weight of dissolved...

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  12. 100 ml of a sample of water required 1.96 mg of potassium dichromate i...

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  13. COD value of a water sample is 40 ppm, Calculate the amount of acidifi...

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  14. Ozone is harmful in the environment segment X but is useful in the env...

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  15. Freons are boon to industry, but curse to environment,justify

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  16. Bleaching og paper with hydrogen peroxide is preferred now-a-day .Why?

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  17. TLV value of four pollutants A, B C and D are 2ppm, 9 ppm, 20 ppm and ...

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  18. COD of a water sample is 8 ppm, Calculate the weight of acidified K2Cr...

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  19. K2Cr2O7 in presence of the H2SO4 for the oxidation of dissolved organ...

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  20. A sample of pond water contains 40mg of organic matter requires 32 mg ...

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