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The reagent used to detect fluoride pres...

The reagent used to detect fluoride present in water in

A

Alum + CaO + `CaOCl_2`

B

defluoron-I & II

C

Zirconium-alizarin-S.dye

D

Calcium aluminium fluoride

Text Solution

Verified by Experts

The correct Answer is:
C
Zirocnium - alizarin S. dye
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AAKASH SERIES-ENVIRONMENTAL CHEMISTRY-PRACTICE SHEET (STRAIGHT OBJECTIVE TYPE QUESTIONS)
  1. The term not responsible for water pollution

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  2. Water pollution does not cause

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  3. The reagent used to detect fluoride present in water in

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  4. Whch one of the following substances is used to reactivate the de acti...

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  5. Formula of enamel on teeth is

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  6. Water become useless for drinking purpose if the fluoride concentratio...

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  7. In ion exchange method of defluoridation of water, which one of the fo...

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  8. DDT is

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  9. The suspected carcinogeic water pollutant is

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  10. Phosphate pollution is caused by

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  11. By using activated carbon method, F- ion concentration in water can be...

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  12. In the Nalgonda method, chemicals used for defluoridation of water in ...

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  13. Which one of the following can be recycled ?

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  14. CH2=CH2+O(2)overset(" onestepoxidation")underset("metal ions")rarrunde...

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  15. Which of the following is environmental friendly reaction

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  16. Metal that escapes into atmosphere by the fumes of automobile vehicles

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  17. Which of the following is green house gas and also causes depletion of...

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  18. The common components of photo chemical smog are

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  19. Which of the following is not the effect of ozone bole.

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  20. The green house effect is mainly caused by

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