List of top Chemistry Questions on Environmental Chemistry asked in AP EAMCET

Which of the following is/are estimated by titrating polluted water with potassium dichromate solution in acidic medium?

Match the pollutant in List I with its maximum permissible limit in drinking water given in List II.

Two statements are given below: I. In dry cleaning, the solvent \(Cl_2C\) = \(CCl_2\) was earlier used and now it is replaced by liquefied \(CO_2\).
II. In bleaching of paper, \(H_2O_2\) was used earlier and now it is replaced by chlorine gas.

Arrange the following pesticides in the chronological order of their release into the market: A: Organophosphates
B: Organochlorides
C: Sodium chlorate