DDT (dichlorodiphenyltrichloroethane) and Aldrin are well-known pesticides.
PAN (peroxyacetyl nitrate) is a component of photochemical smog.
Sodium chlorate is a herbicide and defoliant.
Sodium arsinite has been used as an insecticide and rodenticide.
Tetrachloroethene is used in dry cleaning.
Therefore, the correct group of chemicals used as pesticides is DDT and Aldrin.
Calculate the potential for half-cell containing 0.01 M K\(_2\)Cr\(_2\)O\(_7\)(aq), 0.01 M Cr\(^{3+}\)(aq), and 1.0 x 10\(^{-4}\) M H\(^+\)(aq).
If all the words with or without meaning made using all the letters of the word "KANPUR" are arranged as in a dictionary, then the word at 440th position in this arrangement is: